Ore sorting device

Abstract

The present disclosure provides an ore sorting device, which comprises: a ring-shaped platform fixedly arranged and having an upper surface divided into a plurality of ore placement areas; a detection device arranged below or above the ring-shaped platform and used for sorting ores into different grades through detection, each of the ore placement areas corresponding to the detection device; a receiving device arranged on the outer side or the inner side of the ring-shaped platform and comprising at least two receiving portions for accommodating ores of different grades; and a sorting member used for feeding ores of different grades into the corresponding receiving portions.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ore sorting, and in particular to an ore sorting device. BACKGROUND

[0002] Currently, valuable metals such as uranium, thorium, copper, iron, gold, aluminum, etc. are usually extracted from ores. Different ores have different contents of valuable metals, and before the ores are refined, the ores with high content of valuable metals, i.e. concentrates, need to be sorted out, and the ores with low content of valuable metals, i.e. tailings, are usually discarded.

[0003] In a conventional sorting system for radioactive ores such as uranium ore and thorium ore, a spectrometer detector is usually used to detect the radioactivity of the uranium ore and the thorium ore. For example, for uranium ore, a gamma-ray detector is usually used to detect the radioactivity of the uranium ore. In such a sorting system, the spectrometer detectors are often arranged in a row directly below a conveying device that conveys the radioactive ores. When the system is working, the radioactive ores pass through the spectrometer detectors one by one, and the spectrometer detectors measure the radioactivity count of the ores. The radioactivity count of the ores is compared with the background count when there is no radioactive ore, and the mass of the ores is estimated, and the specific radioactivity level of the ores is further calculated, so as to realize the sorting of the radioactive ores. In order to reduce the mutual interference of adjacent ores on the conveying device, a suitable shielding structure must be provided between the adjacent ores, and therefore the measurement time utilization rate of the detectors is low, and the time utilization rate of each detector is not more than: the visible distance of the spectrometer to the conveying device / the interval of the ores. This leads to the need for more spectrometer detectors under the condition of a certain amount of ore sorting, which increases the cost of the equipment.

[0004] In addition, in a sorting scheme based on XRF, (near) infrared, LIBS, Raman, etc. spectrum detection technology, generally includes a feeding device, a conveying device, a light source and a detector, a sorting module, a control module, and a bin. When performing sample sorting, the target atoms or molecules in the sample will emit characteristic spectral lines under the excitation of the light source. The characteristic spectral lines reflect the composition of the atoms or molecules, and the intensity of the characteristic spectral lines is positively correlated with the content of the substance. If the content of the target substance is low, the required measurement time may increase to seconds or even more. At this time, it is impossible to complete the sorting of the samples in a pipeline on the conveying device, or it will lead to the processing capacity that cannot meet the requirements.

[0005] On the other hand, since the ore dressing needs to be carried out according to the relative content of the target component of the ore, sometimes the mass of the ore sample needs to be measured. In the traditional radioactive ore dressing scheme, a pressure sensor is installed on the conveying device to measure the mass or the volume is estimated by using an optical camera and then the mass is estimated according to the density. The error of the two measurement methods is large, which also makes the error of the ore dressing result large, resulting in the increase of the false positive rate (FPR) and the false negative rate (FNR) in the ore dressing. Therefore, a radioactive ore sorting machine is disclosed in Chinese Patent Publication CN106040617A, which includes an X-ray source and an X-ray detector, and the mass of the ore is calculated by using X-ray transmission technology. However, this will increase the cost of the sorting system and will bring additional radiation protection burden. SUMMARY

[0006] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an ore sorting device as follows.

[0007] <1> An ore sorting device, comprising:

[0008] a ring-shaped platform, which is fixedly arranged and whose upper surface is divided into a plurality of ore placing areas,

[0010] a detection device, which is arranged below or above the ring-shaped platform and is used for sorting the ores into different grades by detection, and each ore placing area corresponds to the detection device,

[0011] a receiving device, which is arranged outside or inside the ring-shaped platform and includes at least two receiving parts for accommodating ores of different grades,

[0012] a sorting member, which is used for sending ores of different grades into the corresponding receiving parts.

[0013] <2> The ore sorting device according to <1>, further comprising a distributing device, which is movably arranged above the ring-shaped platform and is used for feeding ores to the plurality of ore placing areas.

[0014] <3> The ore sorting device according to <2>, wherein the distributing device includes a material hopper and a distributing pipeline, the material hopper and the distributing pipeline are configured to be rotatable around the center of the ring-shaped platform; or the material hopper and the distributing pipeline are relatively rotatably connected, and the distributing pipeline is configured to be rotatable around the center of the ring-shaped platform.

[0015] <4> The ore sorting device according to <1>, wherein the ring-shaped platform is provided with a pressure sensor at each ore placing area position, which is used for detecting the mass of the ore.

[0015] <5> The ore sorting device according to any one of <1> to <4>, further comprising a control device, the control device being communicatively connected with the detection device and the sorting member, the control device being configured to divide the ores into different grades based on the detection result of the detection device, and control the sorting member to send the ores of different grades into corresponding holding parts.

[0016] <6> The ore sorting device according to any one of <1> to <5>, wherein the sorting member is a nozzle, the nozzle being a movable nozzle and movable around the center of the annular platform.

[0017] <7> The ore sorting device according to any one of <1> to <5>, wherein the sorting member comprises a plurality of nozzles, the nozzles being arranged one-to-one corresponding to the plurality of ore placement areas.

[0018] <8> The ore sorting device according to <1>, wherein the receiving device comprises at least a first bin and a second bin, the first bin and the second bin being annular or sector annular structures and arranged on the same side or on opposite sides of the annular platform.

[0019] <9> The ore sorting device according to <8>, wherein the sorting member is an ore container arranged in the ore placement area, the ore container being rotatable towards the first bin or the second bin, for moving the ores in the ore container into the corresponding bin.

[0020] <10> The ore sorting device according to <1>, wherein the detection device is an array of radioactive detectors arranged below the annular platform.

[0021] <11> The ore sorting device according to <10>, wherein the radioactive detector comprises a detector crystal for detecting the radioactivity of the ores, and a shielding body for shielding the detector crystal.

[0022] <12> The ore sorting device according to <1>, wherein the detection device is a spectrum-based spectrum detection device arranged above the annular platform.

[0023] <13> The ore sorting device according to <12>, wherein the spectrum detection device comprises an energy emitting device for emitting detection energy to the ores, and a detector for detecting the energy reflected back by the ores.

[0024] According to the ore sorting device provided in this disclosure, a ring platform is set up, with multiple ore placement areas on the ring platform. Detection devices are positioned above or below the corresponding ore placement areas to accommodate different ore detection methods. Multiple ores can be placed in each ore placement area for detection at once, and detection can begin as soon as the ore is placed on the ring platform. The solid angle between the detection device and the ore to be detected is maximized to ensure the time utilization efficiency of the ore sorting device, resulting in higher efficiency in ore detection and sorting. Furthermore, the ore sorting device of this disclosure features a fixed ring platform for placing the ore to be detected. A feeding device is positioned above the ring platform, and the movement of the feeding device delivers the ore to the ore placement area of ​​the ring platform. This prevents detection errors caused by the relative movement of the ore during detection and also saves floor space. Attached Figure Description

[0025] Other features, objects, and advantages of this disclosure will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of a sorting device based on radioactivity detection in one embodiment;

[0027] Figure 2 for Figure 1 A partial sectional view;

[0028] Figure 3 This is a schematic diagram of a sorting device based on radioactivity detection in another embodiment;

[0029] Figure 4 for Figure 3 A partial sectional view;

[0030] Figure 5 This is a schematic diagram of the fabric distribution device in one embodiment;

[0031] Figure 6 This is a schematic diagram of a sorting device based on spectral detection in one embodiment;

[0032] Figure 7 for Figure 6 A partial sectional view;

[0033] Figure 8 This is a schematic diagram of a sorting device based on spectral detection in another embodiment;

[0034] Figure 9 for Figure 8 A partial sectional view. Detailed Implementation

[0035] The present disclosure will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not to be used to limit the present disclosure. In addition, it should be noted that only the parts related to the present disclosure are shown in the drawings for ease of description.

[0036] It should be noted that the embodiments and features in the present disclosure can be combined with each other without conflict. The present disclosure will be described below with reference to the drawings and embodiments. Figures 1-9 The present disclosure will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not to be used to limit the present disclosure. In addition, it should be noted that only the parts related to the present disclosure are shown in the drawings for ease of description.

[0037] The present disclosure provides an ore sorting device, comprising:

[0038] A ring-shaped platform 1 is fixedly arranged, and the upper surface thereof is divided into a plurality of ore placement areas 10,

[0039] A detection device is arranged below or above the ring-shaped platform, for detecting the ore into different grades, and each ore placement area 10 corresponds to a detection device,

[0040] A receiving device is arranged on the outside or inside of the ring-shaped platform 1, comprising at least two receiving parts for accommodating different grades of ore,

[0041] A sorting member is used to send different grades of ore into the corresponding receiving part.

[0042] The ore sorting device provided by the present disclosure can be applied to various cases of ore sorting, such as sorting based on radioactivity, or sorting based on infrared detection, etc. In different cases, different types of detection devices are used for ore detection. For example, in the case of sorting uranium ore, a gamma-ray detector can be used as a detection device.

[0043] In the present disclosure, the ore sorting device is provided with a ring-shaped platform 1, a plurality of ore placement areas 10 are arranged on the upper surface of the ring-shaped platform 1, and detection devices are arranged above or below the corresponding ore placement areas 10 to correspond to different ore 8 detection methods. In the present disclosure, the ring can be a circular ring, an elliptical ring, a square ring, a rectangular ring, or other closed rings. Further, the ore 8 can be placed in each ore placement area 10 at one time for detection and sorting, or the ore 8 placed in the plurality of ore placement areas 10 in turn can be detected and sorted in turn. In the latter case, after the ore 8 is placed in any ore placement area 10 (for example Figure 1 of the ring-shaped platform 1 (for example Figure 1The solid angle between the detection device and the ore 8 is preferably as large as possible, thereby ensuring the time utilization efficiency of the ore sorting device, so that the detection and sorting of the ore 8 have higher efficiency. The space portion surrounded by one conical surface is called a solid angle. For example, taking the detection device arranged below the ore placement area 10 as the center of a sphere, the length between the detection device and the ore as the radius, and the area of the cone cut on the surface of the sphere as the current solid angle. In the ore sorting device of the present disclosure, the solid angle is greater than π / 3, preferably greater than π / 2, and more preferably greater than π.

[0044] In the present disclosure, the annular platform 1 of the ore sorting device is preferably fixedly arranged. In the case of using a fixed annular platform 1, the annular platform 1 and the corresponding detection device are preferably both fixed, the ore 8 is placed on the ore placement area 10 of the annular platform 1, the stress state of the ore 8 is simple, and there is no relative movement between the ore and the detection device, the pressure sensor and the like described below, which can ensure the accuracy of the measurement and detection of the ore 8. In one embodiment, for example, in the case of sequentially detecting the ores 8 placed in each ore placement area 10, it is not necessary to arrange a detection device for each ore placement area 10, and only one or several detection devices less than the number of ore placement areas 10 can be arranged, and the detection device can be rotated along the annularly arranged ore placement areas 10 to sequentially complete the detection of the ores 8 in each ore placement area 10. Through this arrangement, the number of detection devices can be significantly reduced.

[0045] In the present disclosure, the receiving device includes at least two receiving parts for receiving ores of different grades, which are arranged on the outer side or the inner side of the annular platform. In one embodiment, the receiving device includes a first bin 2 and a second bin 3, one of which is arranged on the outer side of the annular platform, and the other is arranged on the inner side of the annular platform. In another embodiment, both the first bin 2 and the second bin 3 are arranged on the same side (outer side or inner side) of the annular platform. By arranging the first bin 2 and the second bin 3 for receiving two different grades of ores, such as concentrate and lean ore, the number of bins can be adjusted according to the actual grades of the ores 8 to be distinguished in the present disclosure.

[0046] In one embodiment, as shown in FIG. 1, the first bin 2 and the second bin 3 are arranged on the outer side of the annular platform 1. In another embodiment, as shown in FIG. 2, the first bin 2 and the second bin 3 are arranged on the inner side of the annular platform 1. In another embodiment, as shown in FIG. 3, the first bin 2 and the second bin 3 are arranged on the same side (outer side or inner side) of the annular platform 1. Figure 3 and Figure 8As shown, the first bin 2 and the second bin 3 included in the receiving device are annular structures, and are arranged outside the annular platform 1. Alternatively, the first bin 2 and the second bin 3 are arranged on the two sides of the annular platform 1 respectively, and the ore is moved to the corresponding bin after the grade of the ore is determined. In an embodiment, the first bin 2 and the second bin 3 are arranged inside the annular platform, and the bins and the nozzles 4 as the sorting members are arranged on the opposite sides of the annular platform 1. The ore 8 is blown into different bins by the nozzles 4 to sort the ore, for example, into concentrate and lean ore. In another embodiment, as shown in Figure 1 and Figure 6 As shown, the first bin 2 and the second bin 3 included in the receiving device are part of the annular structure, i.e. a fan annular structure. In this embodiment, the annular platform 1 and / or the receiving device need to be arranged in a rotatable form, preferably only the receiving device is arranged in a rotatable form, so that when the sorting member sorts the ore 8 in the ore placement area 10, the receiving device can be rotated to the corresponding position of the corresponding ore placement area 10. In an embodiment, the fan annular first bin 2 and the second bin 3 are fixedly arranged relative to the detection device, so that when the detection device rotates to the first ore placement area 12 to detect the ore 8 after the detection of the second ore placement area 13 is completed, the fan annular first bin 2 and the second bin 3 rotate synchronously to the lower side of the second ore placement area 13 to accommodate the ore 8 from the ore placement area 13, and so on. At this time, the synchronous rotation of the fan annular first bin 2 and the second bin 3 and the detection device can be completed by the same driving device (not shown), thereby simplifying the structure. In addition, the relative position between the fan annular first bin 2 and the second bin 3 and the detection device can be adjusted according to the number of ore placement areas 10, the detection time, the sorting time, etc.

[0047] In an embodiment, the first bin 2 and / or the second bin 3 are arranged in a spaced structure, and a plurality of partitions are arranged in the annular or fan annular bin to divide each bin into a plurality of spaced sub-bin structures. The ore can be divided into more grades, and each sub-bin corresponds to the same or different grade of ore, thereby performing more grade division.

[0048] In an embodiment, the annular platform 1 is provided with a pressure sensor 6 at the position of each ore placement area 10 for detecting the mass of the ore to be detected. For example, the pressure sensor 6 for measuring the mass of the ore is installed below each ore placement area 10 of the annular platform 1. When the ore 8 is placed on the ore placement area 10 for detection, there is no relative movement between the ore 8 and the pressure sensor 6, the mass measurement is more accurate, and the false positive rate and the false negative rate can be reduced.

[0049] In one embodiment, a shielding partition 11 is provided between adjacent ore placement areas 10. In this embodiment, in order to ensure the amount of ore 8 to be detected at one time and to increase the detection efficiency, the distance between adjacent ore placement areas 10 can be set to be small, i.e. for the same size of the ring-shaped platform, the number of ore placement areas 10 can be increased. In addition, the shielding partition 11 can be provided between adjacent ore placement areas 10 to ensure that the adjacent detection devices and the adjacent ores 8 do not affect each other, so as to reduce or eliminate the adverse effects of adjacent ores 8 during detection. The shielding partition 11 can be made of lead plate, steel plate, etc. In another embodiment, the shielding partition 11 is movably and / or detachably provided on the surface of the ring-shaped platform 1, so that the size of each ore placement area 10 can be adjusted according to actual needs. Similarly, one or more detection devices corresponding to the ore placement area 10 can also be movably and / or detachably provided.

[0050] In one embodiment, each ore placement area 10 on the ring-shaped platform 1 can be provided with a middle recessed structure, so that the ore is not easy to slide when placed in the ore placement area 10. The middle recessed structure can be funnel-shaped, bowl-shaped or other recessed shapes. By providing the middle recessed structure, the ore can be stabilized more quickly when placed in the ore placement area 10, so that the detection can be started as soon as possible. Further, by placing the ore in the ore placement area 10 with the middle recessed structure, the interference between the ores placed in each ore placement area 10, such as the interference of radioactive rays, can be prevented. Preferably, the ore placement area with the recessed structure can be made of lead, steel, etc. In this case, the shielding partition 11 described above can be omitted. In addition, if the ring-shaped platform is provided as a rotating platform, the ore 8 placed in the ore placement area 10 is more stable when the middle recessed structure is provided, and the relative movement between the ore 8 and the ore placement area 10 is not easy to occur. In this way, the measurement accuracy of the pressure sensor 6, for example, can also be ensured.

[0051] In the present disclosure, the sorting member can be a nozzle 4. The air outlet of the nozzle 4 is provided towards the ore placement area 10. The nozzle 4 can be provided with one or more. In one embodiment, as shown in FIG. 1, the ring-shaped platform 1 is provided with a plurality of nozzles 4, and each nozzle 4 is provided corresponding to each ore placement area 10. In this way, the ore 8 placed in each ore placement area 10 can be detected by the corresponding nozzle 4. Figure 1 and Figure 6As shown, the nozzles 4 are arranged in a movable form, which can move around the center of the annular platform 1 and reach the corresponding blowing positions of the ore placement areas 10 in sequence. When the ores in the corresponding ore placement areas 10 need to be blown, the nozzles 4 are moved to the corresponding positions to blow the detected ores 8 in the ore placement areas 10. In this embodiment, the ores 8 are blown into the corresponding bins by the nozzles 4 arranged in this way. By controlling the air flow rate of the nozzles 4, different ores 8 can be blown to different distances and thus fall into different bins. By arranging the nozzles 4 in a movable form, the efficiency of the blowing operation on multiple ores 8 can be improved. It should be noted that when the annular platform 1 is rotatable, the nozzles can also be fixedly arranged.

[0052] In another embodiment, as shown in Figure 3 and Figure 8 The sorting member includes a plurality of nozzles 4, which are arranged in one-to-one correspondence with the ore placement areas 10, preferably fixedly arranged. The plurality of nozzles 4 can be used simultaneously or independently in time-sharing control. For example, when the ores on the ore placement areas 10 are detected simultaneously, the blowing operation can be performed simultaneously to improve the efficiency of ore detection and sorting. In the present disclosure, the sorting mechanism can also use the rotatable ore container mentioned below, or use a mechanical hand to grasp the ores, or use a push rod type push plate to push the ores to the corresponding accommodation portions of the receiving device, or arrange corresponding nozzles on both sides of the annular structure, and start different nozzles to blow the ores into different bins, etc.

[0053] For example, in an embodiment, the sorting member can be an openable baffle arranged in the ore placement area 10 and a transmission channel arranged below the ore placement area 10 and communicating with the opening formed when the baffle is opened. In this case, nozzles need not be arranged. After the detection device completes the detection of the ores 8, the baffle can be controlled to open, so that the ores fall into the transmission channel. The transmission channel can branch into two sub-channels, which are respectively connected to the two accommodation portions of the receiving device, for guiding the ores passing through the two sub-channels to the corresponding accommodation portions. The transmission channel has a movable switching piece at the branch of the two sub-channels, which can control the switching piece to block the entrance of one of the two sub-channels, so that the transmission channel can only guide the ores into one of the accommodation portions at the same time. It should be noted that the number of sub-channels is not particularly limited and can be arranged according to the grades of ores, for example, three or four sub-channels. In addition, when the ore placement area 10 is arranged in a concave structure (for example, a bowl-shaped structure), the above-mentioned openable baffle can be half of the bowl-shaped structure. When the bowl-shaped structure is opened, the ores automatically fall into the transmission channel to the accommodation portions of the receiving device.

[0054] Further, the ore sorting device of the present disclosure also particularly preferably comprises a distributing device. In one embodiment, as shown in Figure 5 the distributing device is a distributing hopper 9. The distributing hopper 9 comprises a material hopper 90 having a large opening for conveniently feeding the ore, and a distributing pipe 92. The material hopper 90 comprises a discharge port 91, and the distributing pipe 92 is a spiral pipe having an inlet 93 connected and communicated with the discharge port 91 of the material hopper 90, and an outlet 94 extending above the annular platform 1 for placing the ore 8 in the corresponding ore placement area 10. In one embodiment, the distributing hopper 9 is movably, preferably rotatably, arranged above the annular platform 1, preferably with the rotation axis overlapping the central axis of the annular platform when rotating. That is, the material hopper 90 and the distributing pipe 92 of the distributing hopper 9 are configured to rotate around the center of the annular platform. At this time, the outlet 94 of the distributing pipe 92 is preferably always located above any ore placement area 10 of the annular platform. In this embodiment, the distributing hopper 9 can place the ore 8 in different ore placement areas 10 in sequence for detection by rotating, and the ore feeding time interval is short, which can realize efficient detection. In another embodiment, the inlet 93 of the distributing pipe 92 is relatively rotatably connected with the outlet 91 of the material hopper 90, and the distributing pipe 92 is configured to rotate around the center of the annular platform. Thus, by keeping the material hopper 90 stationary and rotating the distributing pipe 92, the outlet 94 of the distributing pipe 92 can move along the ore placement areas 10 on the annular platform 1 in sequence to feed the ore 8 to each ore placement area 10 in sequence. A baffle is preferably arranged at the outlet 94 of the distributing pipe 92, and the baffle is opened by a control device (to be described below) when feeding the ore 8, and is closed when moving (rotating) to prevent the ore 8 from falling. The movement (rotation) of the distributing pipe 92 can be driven by a driving device such as a motor (not shown). At the moment when the ore 8 is fed to each ore placement area 10 through the outlet 94 of the distributing pipe 92, the ore 8 is preferably fed in a state that the distributing hopper 9 or the distributing pipe 92 is stationary.

[0055] In the present disclosure, the distributing device can also take other forms, such as directly using a mechanical gripper to grab the corresponding ore, or using a movable net or the like to move the ore, or using multiple pipes to distribute the ore, with different pipes being connected to different ore placement areas 10. In an embodiment, the distributing device comprises a conveying device 5, which can be a transmission belt in particular, connected to a first ore placement area 12 for conveying the ore 8 onto the ore placement areas 10. The first ore placement area 12 is any one of the ore placement areas 10. In an embodiment, the movable conveying device 5 conveys the ore 8 to each of the ore placement areas 10 in turn. In another embodiment, the rotating annular platform 1 is rotated so that each ore placement area 10 is located below the conveying device 5 to receive the ore 8 falling from the conveying device 5 in turn.

[0056] In an embodiment, the sorting member is an ore container provided in the ore placement area 10, which can be rotated towards the first bin 2 or the second bin 3 to move the ore in the ore container to the corresponding bin. Specifically, for example, when the first bin 2 and the second bin 3 are provided on the two sides of the ore placement area 10, the ore can be moved to different bins by rotating the ore container towards different directions. After the detection is completed, the ore sample container can be flipped, with the flipping direction being towards the first bin 2 or the second bin 3, and the ore sample container is flipped to the left or right so that the ore sample can fall into the corresponding bin. In the present embodiment, the ore sample container is preferably provided on a rotating shaft to be rotated. In order to ensure the efficiency of the ore sample falling after the flipping, the ore sample container is preferably set to be flipped by an angle of 60° to 90° each time, and the inclination angle of the two side walls of the ore sample container is 30° to 45° (the inclination angle refers to the angle between the side wall of the ore sample container and the central axis of the container), so that the ore sample is smoothly flipped into the corresponding bin through the inclined side wall of the ore sample container, and the ore sample container does not need to be flipped by a large angle to achieve the movement of the ore sample, thereby saving time.

[0057] The present disclosure also provides another ore sorting device, such as Figure 1 、 2 and Figure 6 、 7As shown, the annular platform 1 adopts a rotating structure, and has a starting point and an ending point. Each ore is placed on the ore placement area 10 (for example, the first ore placement area 12) at the starting point, and the annular platform rotates (for example, counterclockwise) to detect the ore. When the ore 8 on the ore placement area 10 at the starting point moves to the ending point (at this time, the position shown by the second ore placement area 13), the detection ends, and the detected ore is sent into the corresponding bin at the ending point. When the ore placement area 10 at the starting point is placed with the ore 8, the annular platform 1 rotates, and the ore placement area 10 at the subsequent position is also placed with the ore 8. Therefore, the conveying device 5 is preferably arranged, and the conveying device 5 is connected to the first ore placement area 12. The first ore placement area 12 can be selected at will, but the selected first ore placement area 12 is the starting point as described above. The connection of the conveying device 5 to the first ore placement area 12 means that the end of the conveying device 5 is arranged above or near the first ore placement area 12, as long as the ore on the conveying device 5 can be conveyed to the corresponding ore detection area.

[0058] In an embodiment, the annular platform 1 can rotate along the platform axis, the first bin 2 and the second bin 3 are fan-shaped annular structures, and are fixedly arranged outside the second ore placement area 13. The second ore placement area 13 is the position closest to the first ore placement area 12 in the opposite direction of the rotation.

[0059] Since the annular platform 1 in the embodiment is a rotating structure, after the ore detection is completed, the corresponding ore is sent into the bin through the nozzle, and the bin only needs to be arranged at the ending point. The first ore placement area 12 is preferably rotated counterclockwise, and the closest position is set as the second ore placement area 13, which is used as the ending point of the detection. Therefore, the detection is completed after the annular platform 1 rotates one round, and the corresponding ore is sprayed. Such an arrangement provides sufficient time for the detection of the corresponding ore. The time for placing, detecting and sorting the ore can be the time for the annular platform 1 to rotate one round. If the detection needs a longer time, the rotation speed of the annular platform 1 can be adjusted to ensure the detection time. Similarly, for the fixed annular platform, the time for placing, detecting and sorting the ore can be the time for the material arrangement device to rotate one round.

[0060] In the embodiment, a plurality of bins can be preferably arranged to subdivide the ore grades. The plurality of bins can be arranged outside different ore placement areas, and the movable nozzle or a plurality of nozzles can be used to spray the ore.

[0061] In the embodiment, one nozzle 4 is preferably arranged, and the nozzle 4 is arranged at the ending point of the annular platform 1, that is, the position of the second ore placement area 13. The nozzle 4 sprays after the detection of the ore ends.

[0062] Further, the inner side and the outer side of the annular platform 1 are provided with baffles 14. The annular platform 1 provided in the above embodiment is a rotatable structure, and since the ore has a tendency to be thrown out under the action of centrifugal force when rotating, the baffles 14 are provided on the outer side of the rotating structure, and on the other hand, in order to prevent the ore conveyed from the conveying device from being thrown out of the detection position, the baffles 14 are also provided on the inner side of the rotating structure. The baffles 14 can not rotate with the ore.

[0063] The ore sorting device provided in the above embodiment has a pressure sensor 6 for detecting the mass of the ore, and can directly detect the mass of the ore 8. The pressure sensor 6 can be directly installed below the ore placement area 10 of the annular platform 1, and there is no relative movement between the ore 8 and the annular platform 1, so that the mass detection of the ore is more accurate. In addition, the ore sorting device using the annular structure in the present disclosure can improve the detection efficiency of the ore. For example, the detection and judgment time of radioactive ore is 0.8s, the time for feeding and discharging is about 0.1s respectively, and the time for one rotation of the annular platform 1 or the feeding device is 1s, so that in the case that the ore sorting device has 10 ore placement areas 10, the sorting of the ore 8 in the 10 ore placement areas 10 can be completed in 1s, and the feeding, detection, analysis and sorting operations of the ore can be cyclically performed, at the same time, the time utilization rate of the detection device can reach 80%, which greatly improves the detection efficiency. It is to be noted that in the present disclosure, in the case that the pressure sensor 6 is provided, the term "detection" includes the detection of the detection device and the mass detection of the pressure sensor 6, unless otherwise indicated.

[0064] In the embodiment of the present disclosure, the ore sorting device further comprises a control device, which is in communication connection with the detection device, the sorting member, the pressure sensor 6 provided on the annular platform 1, etc. When the ore is placed on the annular platform 1 (specifically, the ore placement area 10), the pressure sensor 6 detects, and the detection device also detects the ore on the annular platform 1 at the same time, and sends the detection result to the control device. Based on the corresponding detection result, the control device calculates the content of the specific element in the ore, and preferably compares it with the ore grade standard pre-stored in the storage of the control device, so as to divide the ore into different grades. After the detection of the ore is completed, the control device performs other structures, such as the sorting member, to move the detected ore to the receiving device.

[0065] Specifically, the control device is in communication connection with the sorting member, when the ore detection is completed and the control device receives the detection result, the control device controls the sorting member to perform corresponding sorting action, and the ore of different grades is sent into the corresponding containing part, for example, when the sorting member is a nozzle, the control device controls the airflow blown by the nozzle to be different, and the ore of different grades is blown to different distances, and correspondingly falls into different hoppers.

[0066] In one embodiment, the control device is also in communication connection with the distributing device, before the ore on the annular platform 1 is placed for detection, the control device controls the distributing device to distribute the ore, and the ore is placed in different ore placing areas 10 on the annular platform; after the sorting member sends the ore into different containing parts, the distributing device is controlled to re-distribute the ore on the position where the ore has been sorted, for example, when the distributing device is the distributing hopper structure in the above embodiment, the ore is placed in each ore placing area 10 on the annular platform 1 by controlling the rotating speed and angle of the distributing device each time.

[0067] The annular platform 1 adopted in the present disclosure is preferably fixedly arranged, and can also be in the form of being rotatable. In the case where the annular platform 1 is in the form of being rotatable, the rotating direction and rotating speed of the annular platform 1 can be controlled by the control device. In addition, in the case where the sorting mechanism, the detection device need to rotate, for example, in the case where only one nozzle is arranged, only one detection device is arranged, etc., the control device can also be in communication connection with the driving conversion for driving the rotation of the sorting mechanism, the detection device, the material receiving device, etc., so as to control the opening and closing, speed, direction, etc. of the rotation of the sorting mechanism, the detection device, the material receiving device, etc.

[0068] Figures 1 to 9 For different specific embodiments of the sorting device, the following is specifically described.

[0069] As Figure 1 and Figure 2As shown, the ore sorting device of the present disclosure comprises a ring platform 1, which is a rotatable ring platform, the upper surface of which is divided into a plurality of ore placement areas 10, and a pressure sensor 6 is arranged below each ore placement area 10, and a shielding partition 11 is arranged between each ore placement area 10. The outer side of the ring platform 1 is further provided with a conveying device 5 for conveying the ore to be detected to the ring platform 1; the ore placement areas 10 on the ring platform 1 are provided with a first ore placement area 12, and after the conveying device 5 deposits the ore into the first ore placement area 12, the ring platform 1 rotates, and the ore 8 is deposited into the subsequent ore placement area, for example, a second ore placement area 13. When the ring platform 1 rotates to the position where the first ore placement area 12 is located at the second ore placement area 13, the nozzle 4 arranged at the second ore placement area 13 sprays the ore at this position, and blows the ore into the corresponding bin. Next, the first ore placement area 12 continues to rotate to the position of the conveying device 5 for receiving the ore deposited from the conveying device 5, and so on. A fan-shaped first bin 2 and a second bin 3 are arranged below the outer side of the position of the second ore placement area 13 as a receiving device for accommodating the sorted concentrate and lean ore, and the nozzle 4 and the receiving device are arranged on both sides of the ring platform.

[0070] The ore sorting device adopts radioactive ore dressing, so the radioactive detector is arranged below the ring platform to detect the ore for sorting. Figure 1 In Figure 2 , the detection device is a radioactive detector 7, which can be arranged singly or in an array below the ring platform 1. Each radioactive detector 7 comprises a detector crystal 71 for detecting the radioactivity of the ore, and a shielding body 72 for shielding the detector crystal 71, the shielding body 72 being a box body provided with an opening, the opening being arranged towards the ring platform 1.

[0071] In a specific embodiment, a detector crystal 71 is arranged below each ore placement area 10. In order to ensure that there is no influence between adjacent detector crystals 71, a shielding body 72 is arranged to surround the corresponding detector crystal 71, and the shielding body 72 is provided with an opening, which is arranged towards the ring platform 1 for corresponding detection. Preferably, the detector crystal 71 is arranged close to the ring platform, so that the distance between the detector crystal 71 and the ore 8 is as close as possible, and the solid angle between the detected ore and the detector crystal is also as large as possible, so that the detection is more efficient and effective.

[0072] As shown in Figure 3 and Figure 4 , the ore sorting device of the present disclosure comprises a fixed ring platform. In addition to this, the ore sorting device is the same as Figure 1 and Figure 2The main difference of the ore sorting device is that: two ring-shaped receiving devices are set on the outside of the ring platform, surrounding the ring platform 1, which can receive ore at any position on the ring platform; multiple nozzles 4 are set on the inside of the ring platform 1, and one nozzle 4 is set at each position of the ore placement area 10. After the detection is completed, the nozzle 4 at the corresponding position blows the ore in the ore placement area 10 into the corresponding hopper; the material distribution device (not shown) is movably set to feed ore 8 into each ore placement area 10.

[0073] To explain, it can be Figure 1 and Figure 2 Ore sorting equipment and Figure 3 and Figure 4 Replace relevant components of the ore sorting device. For example, Figure 1 and Figure 2 The ore sorting device can also employ a configuration where multiple nozzles 4 are installed inside the annular platform 1. Furthermore, Figure 3 and Figure 4 The ore sorting device can be configured with a single nozzle, which can be movably positioned.

[0074] The aforementioned ore sorting device also uses radioactive beneficiation.

[0075] When using radioactive beneficiation, radioactive detectors 7 are placed individually or in an array below the annular platform 1 for radioactive detection. Such ore sorting devices are suitable for radioactive sorting of ores containing natural or artificial radioactivity. In particular, this device is significant for naturally radioactive potassium and thorium ores and low-grade uranium ores. In addition, it can also be used for radioactive separation of ores such as vanadium, bauxite, gold, silver, ytterbium-bearing ores, yttrium-bearing ores, selenium, bromine, barium, hafnium, osmium, fluorine, scandium-bearing ores, titanium, chromium, manganese, cobalt, nickel, copper, zinc, gallium, germanium, arsenic, rubidium, strontium, molybdenum, ruthenium, rhodium, palladium, indium, antimony, tellurium, iodine, lanthanum, praseodymium, neodymium, europium, dysprosium, holmium, tungsten, and rhenium ores after particle activation.

[0076] like Figure 6 and Figure 7 As shown, the ore sorting device disclosed herein is similar to... Figure 1 and Figure 2 Similar to the ore sorting devices shown, both use a rotatable annular platform for sorting. The difference lies in the use of a spectral detection-based method; each ore placement area is equipped with a spectral detection device 20. Of course, like... Figure 1 Similarly, the ore sorting device can be equipped with a spectral detection device 20. Therefore, in Figure 6 and Figure 7A spectral detection device 20 including an energy emitting device 21 and a detector 22 is arranged above the ore placement area 10 for detecting the ore. The energy emitting device 21 is used to emit detection energy to the ore 8, and the detector 22 is used to detect the energy (light or wave) reflected back from the ore 8.

[0077] As shown in Figure 8 and Figure 9 , the ore sorting device of the present disclosure is similar to the ore sorting device shown in Figure 3 and Figure 4 , which both use a fixedly arranged annular platform for sorting. The difference is that the ore sorting device of the present disclosure uses a spectral detection based method, so that a spectral detection device 20 including an energy emitting device 21 and a detector 22 is arranged above the ore placement area 10 for detecting the ore. Figure 8 and Figure 9 .

[0078] In the above ore sorting device, the detection device is a spectral detection device 20 based on spectral detection, which is arranged above the annular platform 1 in an array. Such an ore sorting device is also applicable to the case where XRF, (near) infrared, LIBS, Raman, etc. detection and sorting technologies are used for ore sorting.

[0079] Both of the above two ore sorting devices use annular ore sorting devices for detection and sorting, which can ensure the sorting efficiency and ensure the time utilization efficiency of each detection.

[0080] It should be understood that the above-mentioned terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure; the orientation words "inner" and "outer" refer to the inner and outer of the contour of each component itself. In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0081] For purposes of the description hereinafter, spatial or directional terms, for example, "above", "below", "upper", "lower", "top", "bottom", "over", "under", "left", "right" and the like, relate to the

[0082] The above description is only preferred embodiments of the present disclosure and the technical principles of the application. Those skilled in the art should understand that the scope of the application involved in the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the above features are replaced with each other to form a technical solution with similar functions disclosed in the present disclosure (but not limited to).

Claims

1. An ore sorting device, characterized in that, include: The ring-shaped platform is fixed in place, and its upper surface is divided into multiple ore placement areas. A detection device is installed below or above the annular platform to classify the ore into different grades through detection, and each ore placement area corresponds to one of the detection devices. A receiving device, located on the outer or inner side of the annular platform, includes at least two receiving sections for accommodating ores of different grades. The sorting components are used to feed ores of different grades into their respective receiving sections. A feeding device is movably disposed above the annular platform for feeding ore into the plurality of ore placement areas. The feeding device includes a material hopper and a feeding pipe, the material hopper and the feeding pipe being configured to rotate about the center of the annular platform; or, the material hopper and the feeding pipe are rotatably connected relative to each other, the feeding pipe being configured to rotate about the center of the annular platform. The fabric pipe is a spiral pipe, and the radius of curvature of the spiral gradually increases from the inlet of the fabric pipe to its outlet.

2. The ore sorting device according to claim 1, characterized in that, The annular platform is equipped with pressure sensors at each of the ore placement areas to detect the quality of the ore.

3. The ore sorting device according to claim 1, characterized in that, It also includes a control device, which is communicatively connected to the detection device and the sorting component. The control device is configured to classify the ore into different grades based on the detection results of the detection device, and control the sorting component to send the different grades of ore into the corresponding receiving section.

4. The ore sorting device according to any one of claims 1-3, characterized in that, The sorting component is a nozzle, which is a movable nozzle that can move around the center of the annular platform.

5. The ore sorting device according to any one of claims 1-3, characterized in that, The sorting component includes multiple nozzles, and each nozzle is configured to correspond one-to-one with one of the multiple ore placement areas.

6. The ore sorting device according to claim 1, characterized in that, The receiving device includes at least a first hopper and a second hopper, wherein the first hopper and the second hopper are annular or fan-shaped structures and are disposed on both sides or the same side of the annular platform.

7. The ore sorting device according to claim 6, characterized in that, The sorting component is an ore container disposed in the ore placement area. The ore container can rotate toward the first silo or toward the second silo to move the ore in the ore container to the corresponding silo.

8. The ore sorting device according to claim 1, characterized in that, The detection device is an array of radioactive detectors, located below the annular platform.

9. The ore sorting device according to claim 8, characterized in that, The radioactive detector includes a detector crystal for detecting the radioactivity of the ore and a shield for shielding the detector crystal.

10. The ore sorting device according to claim 1, characterized in that, The detection device is a spectral detection device based on spectroscopy, and is positioned above the annular platform.

11. The ore sorting device according to claim 10, characterized in that, The spectral detection device includes an energy emitting device and a detector. The energy emitting device is used to emit detection energy to the ore, and the detector is used to detect the energy reflected back by the ore.

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