Mudification tungsten polymetallic ore dressing magnetic separator and recovery system of recovering black tungsten

Abstract

The application discloses a beneficiation magnetic separator for argillized tungsten polymetallic ore and a recovery system for recovering black tungsten, and relates to the technical field of beneficiation of argillized tungsten polymetallic ore; a deployment box is used for preparing a raw ore slurry with a concentration of 30%; a permanent magnetic separator is connected to the deployment box through a transmission pump and a pipeline at the bottom of the deployment box, and a return pipeline one and a circulating pump one are arranged on the permanent magnetic separator; the raw ore slurry is subjected to magnetic separation by the permanent magnetic separator to obtain a weak magnetic concentrate slurry; a high-intensity magnetic separator is arranged at the bottom of the permanent magnetic separator and connected to the transmission pipeline, and a transmission pump is connected to the transmission pipeline; a concentrate thickener is used for concentrating and thickening the thickened ore slurry to a concentration of 25-35%; a centrifugal concentrator is arranged; a return pipeline two and a circulating pump two are arranged on the centrifugal concentrator, and the circulating frequency is 3 times; and the frequencies of the centrifugal concentrator are 50HZ, 40HZ and 30HZ respectively. The application overcomes the technical problems that the argillized tungsten ore cannot be recovered, and the magnetic separation and gravity separation cannot be used to select materials with a suitable tungsten concentration, and the recovery difficulty is relatively large.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of beneficiation of argillized tungsten polymetallic ore, in particular to a beneficiation magnetic separator for argillized tungsten polymetallic ore and a recovery system for recovering black tungsten. BACKGROUND

[0002] Argillized tungsten polymetallic ore refers to ore with a particle size less than 0.15 mm and a content of particles less than 0.02 mm greater than 40%. Polymetallic ore refers to ore with useful metals including but not limited to tungsten, molybdenum, bismuth, iron and tin. The present application relates to a beneficiation magnetic separator for argillized tungsten polymetallic ore and a recovery system for recovering black tungsten. SUMMARY

[0003] The present application relates to the technical field of beneficiation of argillized tungsten polymetallic ore, in particular to a beneficiation magnetic separator for argillized tungsten polymetallic ore and a recovery system for recovering black tungsten.

[0004] To solve the above technical problems, the present application provides the following technical solutions:

[0005] The recovery system for recovering black tungsten from argillized tungsten polymetallic ore comprises:

[0006] The blending box is used to blend raw ore slurry with a concentration of 30%. The blending box is connected with a transmission pump.

[0007] The permanent magnetic separator is connected with the blending box through the transmission pump and the pipeline. A return pipeline and a circulating pump are arranged at the bottom of the permanent magnetic separator. The return pipeline is used to pump the ore slurry from the permanent magnetic separator back to the inlet of the permanent magnetic separator. The circulating pump is installed on the return pipeline. The raw ore slurry is subjected to magnetic separation in the permanent magnetic separator to obtain weak magnetic concentrate slurry.

[0008] The strong magnetic separator is connected with the permanent magnetic separator through the transmission pipeline. The transmission pipeline is connected with the transmission pump. The weak magnetic concentrate is screened in the strong magnetic separator to obtain black tungsten rough concentrate.

[0009] The concentrate thickener is used to blend and concentrate the black tungsten rough concentrate to obtain concentrated ore slurry with a concentration of 25-35%.

[0010] The centrifugal concentrator is provided with a transmission pipeline and a transmission pump between the centrifugal concentrator and the concentrate thickener; a return pipeline II and a circulating pump II are arranged on the centrifugal concentrator, and the circulating times are three; and the frequencies of the centrifugal concentrator are 50 HZ, 40 HZ and 30 HZ respectively.

[0011] In a further technical solution, the strong magnetic separator is 1.0T-1.3T.

[0012] The mud tungsten polymetallic ore dressing magnetic separator comprises a rack, a magnetic rotating drum is arranged in the rack, and a feeding box is arranged on one side of the magnetic rotating drum.

[0013] A fan-shaped plate is arranged in the magnetic rotating drum, and a magnetic system is arranged on the fan-shaped plate.

[0014] A central shaft is arranged in the middle of the fan-shaped plate, and the central shaft is connected with the fan-shaped plate.

[0015] A load plate is arranged on the central shaft, the load plate is arc-shaped and connected with the central shaft through a connecting rod.

[0016] The magnetic rotating drum is provided with an inner ring shell and an outer ring shell, a baffle piece is arranged on the side of the load plate away from the fan-shaped plate, and a limiting piece is arranged on the connecting rod; the baffle piece is suitable for opening and closing the feeding box.

[0017] A magnetic shielding plate is arranged between the outer ring shell and the inner ring shell.

[0018] In a further technical solution, an arc-shaped opening is arranged on the fan-shaped plate, and a plurality of magnetic systems are arranged in the arc-shaped opening; a closing plate is arranged at both ends of the arc-shaped opening, and the closing plate is suitable for abutting against the end face of the magnetic system and detachably connected with the fan-shaped plate.

[0019] In a further technical solution, an extension plate is arranged on the side of the load plate away from the connecting plate, the extension plate extends out of the inner ring shell and the outer ring shell, and an arc-shaped baffle is integrally connected with the extension plate.

[0020] The arc-shaped baffle, the inner ring shell and the outer ring shell are coaxially arranged.

[0021] A lateral opening is formed in the feeding box, and a baffle plate is arranged in the lateral opening; the top of the baffle plate is rotatably connected with the inner wall of the feeding box; and the arc-shaped baffle is suitable for being movably inserted into the lateral opening to shield the feeding box.

[0022] In a further technical solution, the limiting piece comprises a fixed block, two fixed blocks are arranged and fixedly connected with the inner wall of the inner ring shell; and a limiting rod is arranged between the two fixed blocks.

[0023] The connecting rod is provided with a mounting groove, an inner diameter of the mounting groove is larger than a rod diameter of the limiting rod; and the limiting rod passes through the mounting groove;

[0024] The two groups of fixing blocks are horizontally mounted, and a fixed plate is mounted on the fixing block close to the feeding box, a travel switch is mounted on the fixed plate, and the connecting rod is adapted to abut against the travel switch at the limit position on the limiting rod; the limit position is a position where the connecting rod rotates to abut against the fixing block.

[0025] In a further technical solution, the inner ring shell and the outer ring shell are both provided with an open groove at the top, and the open groove is adapted to extend the plate;

[0026] The inner ring shell is provided with a support plate at both ends, and the support plate is fixedly connected with the rack.

[0027] In a further technical solution, a driving motor is mounted at the outer end of the central shaft, and the driving motor is adapted to drive the central shaft to rotate; the driving motor is a stepping motor.

[0028] In a further technical solution, a water spraying port is mounted at the bottom of the rack, a high-pressure water spraying head is mounted in the water spraying port and is adapted to be connected with an external water pipe; and a discharging port is mounted at the bottom of the magnetic rotating drum;

[0029] A steering motor is mounted at one end of the magnetic rotating drum which is opposite to the driving motor, an output part of the steering motor is provided with a fixed cylinder which is connected with the outer ring shell; after the travel switch is triggered, the high-pressure water spraying head and the steering motor are adapted to be triggered to open and close.

[0030] Compared with the prior art, the present application has the following beneficial effects:

[0031] The present application adopts a combined beneficiation process of "magnetic-magnetic-gravity" for argillized tungsten polymetallic ore. Through the strong magnetic method in the strong magnetic separator, the magnetic field strength is controlled at 1.0-1.3 Tesla, and three consecutive centrifugal beneficiation operations are adopted for gravity separation, so as to continuously separate suitable wolframite concentrate by magnetic separation.

[0032] The present application adjusts the position of the sector plate on the central shaft in the magnetic separation cylinder by the driving motor, so as to affect the position of the magnetic flux in the discharging port. By rotating the connecting rod on the limiting rod to the limit position, on the one hand, the arc-shaped baffle at the top is inserted into the feeding box to achieve the material blocking effect, and on the other hand, the travel switch is triggered to further realize the working of the high-pressure water spraying head and drive the steering motor to be opened to realize the rotation of the magnetic shielding plate. Since the magnetic shielding plate is arranged between the inner ring shell and the outer ring shell and moves to the bottom of the position of the sector plate, it interferes with the adsorbed magnetic separation material at the bottom position, so as to realize the falling of the magnetic separation material at the discharging port. Different passages of the pipeline are used to realize the discharge of the solid magnetic separation material. Without external shutdown and cleaning, quick cleaning can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the recycling system of the present application;

[0034] Figure 2 is a front view structural schematic diagram of the high-intensity magnetic separator of the present application;

[0035] Figure 3 is a front view sectional schematic diagram of the high-intensity magnetic separator of the present application;

[0036] Figure 4 is a Figure 3 enlarged schematic diagram of part A;

[0037] Figure 5 is a Figure 3 enlarged schematic diagram of part B;

[0038] Figure 6 is a Figure 3 enlarged schematic diagram of part C;

[0039] Figure 7 is a back view structural schematic diagram of the high-intensity magnetic separator of the present application.

[0040] In the drawings:

[0041] 1, deployment box; 2, transmission pump; 3, permanent magnetic separator; 31, return pipeline I; 32, circulating pump I; 4, high-intensity magnetic separator; 5, transmission pipeline; 6, concentrate thickener; 7, centrifugal concentrator; 71, return pipeline II; 72, circulating pump II;

[0042] 41, frame; 42, magnetic drum; 43, feeding box; 44, guide plate; 45, sector plate; 46, magnetic system; 47, central shaft; 48, load plate; 49, inner ring shell; 410, outer ring shell; 411, connecting rod; 412, magnetic shielding plate; 413, closing plate; 414, extension plate; 415, arc-shaped baffle; 416, blocking plate; 417, fixed block; 418, limiting rod; 419, mounting groove; 420, travel switch; 421, opening groove; 422, support plate; 423, driving motor; 424, high-pressure water jet head; 425, discharge port; 426, steering motor. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] Example 1

[0045] Referring to Figure 1 , the application provides a technical scheme, a recovery system for recovering wolframite from a mud tungsten polymetallic ore, comprising a preparation tank 1, the preparation tank 1 is used for preparing a raw ore slurry with a concentration, and the concentration of the raw ore slurry is 30%; a transmission pump 2 is connected to the preparation tank 1;

[0046] A permanent magnetic separator 3 is connected to the preparation tank 1 through the transmission pump 2 and a pipeline, a return pipeline 31 and a circulating pump 32 are arranged at the bottom of the permanent magnetic separator 3, the return pipeline 31 is used for repeatedly pumping the ore slurry of the permanent magnetic separator 3 back to the inlet of the permanent magnetic separator 3, and the circulating pump 32 is installed on the return pipeline 31; the raw ore slurry is subjected to magnetic separation in the permanent magnetic separator 3 to obtain a weak magnetic concentrate slurry;

[0047] A strong magnetic separator 4 is arranged at the bottom of the permanent magnetic separator 3 and connected to the transmission pipeline 5, and the transmission pipeline 5 is connected to the transmission pump 2; the weak magnetic concentrate is screened in the strong magnetic separator 4 to obtain a wolframite rough concentrate;

[0048] A concentrate thickener 6 is used for preparing and concentrating the wolframite rough concentrate to a concentrated slurry with a concentration of 25-35%;

[0049] A centrifugal concentrator 7 is installed between the concentrate thickener 6 and connected to the transmission pipeline 5 and the transmission pump 2; a return pipeline 71 and a circulating pump 72 are arranged on the centrifugal concentrator 7, and the circulating frequency is three times; and the frequencies of the centrifugal concentrator 7 are 50 HZ, 40 HZ and 30 HZ respectively.

[0050] In a further technical scheme, the strong magnetic separator 4 is 1.0T-1.3T. The embodiment is used for recovering wolframite from a mud tungsten polymetallic ore, and a tungsten content of more than 15% is produced. The application can solve the problem that the mud tungsten ore cannot be recovered, and a combined beneficiation scheme of magnetic separation and gravity separation is adopted, no beneficiation agent is left in the beneficiation wastewater, and no environmental burden is caused. The application adopts a combined beneficiation process of “magnetic-magnetic-gravity” for the mud tungsten polymetallic ore. The strong magnetic method in the strong magnetic separator is used, the magnetic field strength is controlled to be 1.0 Tesla to 1.3 Tesla, and three times of continuous centrifugal beneficiation operation is adopted for gravity separation.

[0051] Example 2

[0052] As Figures 2-7 shown, another embodiment of the application is based on the embodiment 1, and the mud tungsten polymetallic ore beneficiation magnetic separator comprises a rack 41, a magnetic rotating drum 42 is arranged in the rack 41, and a feeding tank 43 is installed on one side of the magnetic rotating drum 42; as Figure 3As shown, a guide plate 44 is installed in the feed box 43; a sector plate 45 is installed in the magnetic drum 42, and a magnetic system 46 is installed on the sector plate 45; a central shaft 47 is provided in the middle of the sector plate 45, and the central shaft 47 is connected to the sector plate 45;

[0053] A load plate 48 is mounted on the central shaft 47 . The load plate 48 is arc-shaped and is provided with a connecting rod 411 connected to the central shaft 47 .

[0054] like Figure 3 As shown, the magnetic drum 42 is equipped with an inner ring shell 49 and an outer ring shell 410. A baffle is mounted on the side of the load plate 48 facing away from the sector plate 45. A limit member is mounted on the connecting rod 411. The baffle is used to open and close the feed box 43. A magnetic shielding plate 412 is installed between the outer ring shell 410 and the inner ring shell 49. The present invention utilizes two sets of rotating ring shells to facilitate the removal of desired materials adsorbed on the magnetic separation drum. Multiple magnetic systems are installed on the sector plate to adjust the magnetic flux, achieving magnetic attraction at different rack positions and achieving a magnetic separation effect.

[0055] The sector plate 45 is provided with an arc-shaped opening, and the arc-shaped opening is suitable for installing multiple sets of magnetic systems 46; closed plates 413 are provided at both ends of the arc-shaped opening, and the closed plates 413 are suitable for abutting against the end faces of the magnetic systems 46 and are detachably connected to the sector plate 45.

[0056] like Figure 5 As shown, an extension plate 414 is installed on the side of the load plate 48 facing away from the connecting plate. The extension plate 414 extends out of the inner ring shell 49 and the outer ring shell 410 and is integrally connected with an arc-shaped baffle 415;

[0057] The arc-shaped baffle 415, the inner ring shell 49 and the outer ring shell 410 are arranged cocircularly;

[0058] The feed box 43 is provided with a side opening, and a baffle plate 416 is installed in the side opening, and the top of the baffle plate 416 is rotatably connected to the inner wall of the feed box 43; the arc baffle 415 is suitable for being movably inserted into the side opening to shield the feed box 43. The designed arc baffle can set its length according to the size of the feed box actually installed. The limiting part includes a fixed block 417, and the fixed block 417 is provided in two groups and is fixedly connected to the inner wall of the inner ring shell 49; a limiting rod 418 is installed between the two groups of the fixed blocks 417; a mounting groove 419 is provided on the connecting rod 411, and the inner diameter of the mounting groove 419 is larger than the rod diameter of the limiting rod 418; and the limiting rod 418 is provided through the mounting groove 419;

[0059] Combine Figure 3 and Figure 5As shown, two groups of fixed blocks 417 are installed horizontally, and a fixed plate is installed on the fixed block 417 close to the feed box 43, and a limit switch 420 is installed on the fixed plate. The connecting rod 411 is suitable for abutting the limit switch 420 at the extreme position on the limit rod 418; the extreme position is the position where the connecting rod 411 rotates to abut the fixed block 417.

[0060] The tops of the inner ring shell 49 and the outer ring shell 410 are both provided with an opening groove 421, and the opening groove 421 is suitable for the extension plate 414 to pass through; support plates 422 are provided at both ends of the inner ring shell 49, and the support plates 422 are fixedly connected to the frame 41.

[0061] like Figure 2 As shown, a drive motor 423 is mounted on the outer end of the central shaft 47. The drive motor 423 is adapted to drive the central shaft 47 in rotation. The drive motor 423 is a stepper motor. The connection between the drive motor and the central shaft is not shown in the figure. Depending on the actual installation design, a coupling or other connecting component may be added to achieve the connection between the drive motor and the central shaft.

[0062] A water nozzle is installed at the bottom of the frame 41, and a high-pressure water nozzle 424 is installed in the water nozzle, which is arranged obliquely upward and is suitable for connecting to an external water pipe, which is not shown in the figure; and a discharge port 425 is installed at the bottom of the magnetic rotating drum 42; a steering motor 426 is installed at the end of the magnetic rotating drum 42 facing away from the drive motor 423, and a fixed cylinder is installed at the output part of the steering motor 426, and the fixed cylinder is connected to the outer ring shell 410; after the limit switch 420 is triggered, it is suitable for triggering the opening and closing of the high-pressure water nozzle 424 and the opening and closing of the steering motor 426.

[0063] The present invention adjusts the position of the fan-shaped plate on the central axis within the magnetic separator drum by driving a motor, thereby affecting the position of the magnetic flux within the discharge port. The connecting rod rotates on the limiting rod to the extreme position. On the one hand, the top arc-shaped baffle is inserted into the feed box to achieve a material blocking effect. On the other hand, the travel switch is triggered to further realize the operation of the high-pressure water spray head and drive the steering motor to turn on to realize the rotation of the magnetic shielding plate. Since it is set between the inner and outer ring shells, it moves to the bottom of the fan-shaped plate, interfering with the magnetic separation material adsorbed at its bottom position, thereby causing the magnetic separation material to fall to the discharge port, and the solid magnetic separation material is discharged through different directions of the pipeline. No additional shutdown for cleaning is required, and quick cleaning can be achieved.

[0064] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but that the application can be implemented in other embodiments without departing from the scope of the application. The embodiments are therefore to be seen as exemplary and in no way restrictive, the scope of the application being defined by the claims below rather than by the above description, and all variations falling within the meaning and range of equivalency of the essential characteristics of the claims are therefore intended to be embraced therein.

[0065] Furthermore, it should be understood that although the description is made according to embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and a person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A recovery system for recovering wolframite from a pelitised tungsten polymetallic ore, characterised in that it comprises: The application relates to a black tungsten ore processing device. The device comprises a preparation box (1) which prepares raw ore slurry with a concentration of 30%; a transmission pump (2) is connected to the preparation box (1); a permanent magnetic separator (3) is connected to the bottom of the preparation box (1) through a transmission pipeline (2); a return pipeline (31) and a circulating pump (32) are arranged on the permanent magnetic separator (3); the return pipeline (31) is used for repeatedly pumping the raw ore slurry selected by the permanent magnetic separator (3) to the inlet of the permanent magnetic separator (3); the circulating pump (32) is arranged on the return pipeline (31); the raw ore slurry is selected by the permanent magnetic separator (3) to obtain weak magnetic concentrate slurry; a strong magnetic separator (4) is arranged at the bottom of the permanent magnetic separator (3) and is connected to the transmission pipeline (5); the weak magnetic concentrate is screened in the strong magnetic separator (4) to obtain black tungsten coarse concentrate; a concentrate thickener (6) is arranged and is used for concentrating the black tungsten coarse concentrate into concentrated slurry with a concentration of 25-35%; a centrifugal concentrator (7) is arranged and is connected to the transmission pipeline (5) and the transmission pump (2); a return pipeline (71) and a circulating pump (72) are arranged on the centrifugal concentrator (7); the circulating frequency is 3 times; the frequency of the centrifugal concentrator (7) is 50HZ, 40HZ and 30HZ respectively. The strong magnetic separator (4) is 1.0T-1.3T. The strong magnetic separator (4) comprises a rack (41), a magnetic rotating drum (42) is arranged in the rack (41), and a feeding box (43) is arranged on one side of the magnetic rotating drum (42); a guide plate (44) is arranged in the feeding box (43); A sector plate (45) is arranged in the magnetic rotating drum (42), and a magnetic system (46) is arranged on the sector plate (45); A central shaft (47) is arranged in the middle of the sector plate (45), and the central shaft (47) is connected with the sector plate (45); 2. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 1, characterized in that, A load plate (48) is arranged on the central shaft (47), the load plate (48) is arc-shaped and is connected to the central shaft (47) through a connecting rod (411); 3. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 2, characterized in that, The magnetic rotating drum (42) is provided with an inner ring shell (49) and an outer ring shell (410), a baffle piece is arranged on the side, opposite to the sector plate (45), of the load plate (48); a limiting piece is arranged on the connecting rod (411); and the baffle piece is used for opening and closing the feeding box (43); A magnetic shielding plate (412) is arranged between the outer ring shell (410) and the inner ring shell (49). Arc-shaped openings are arranged on the sector plate (45), a plurality of groups of magnetic systems (46) are arranged in the arc-shaped openings, and a closing plate (413) is arranged at the two ends of the arc-shaped openings; the closing plate (413) is used for abutting against the end face of the magnetic system (46) and is detachably connected with the sector plate (45). An extension plate (414) is arranged on the side, opposite to the connecting plate, of the load plate (48), the extension plate (414) extends out of the inner ring shell (49) and the outer ring shell (410) and is integrally connected with an arc-shaped baffle (415). ​ ​ 4. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 3, characterized in that, ​ 5. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 4, characterized in that, ​ The arc-shaped baffle (415), the inner ring shell (49) and the outer ring shell (410) are coaxially arranged; A lateral opening is formed in the feeding box (43), and a baffle plate (416) is arranged in the lateral opening and rotationally connected to the inner wall of the feeding box (43); the arc-shaped baffle (415) is adapted to be movably inserted into the lateral opening to shield the feeding box (43).

6. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 5, characterized in that, The limiting member comprises two fixed blocks (417) which are fixedly connected to the inner wall of the inner ring shell (49); a limiting rod (418) is arranged between the two fixed blocks (417); An installation groove (419) is formed in the connecting rod (411), and the inner diameter of the installation groove (419) is greater than the diameter of the limiting rod (418); and the limiting rod (418) passes through the installation groove (419); The two fixed blocks (417) are horizontally arranged, and the fixed block (417) close to the feeding box (43) is provided with a fixed plate, and a travel switch (420) is arranged on the fixed plate; the connecting rod (411) is adapted to abut against the travel switch (420) at the limit position of the limiting rod (418); the limit position is the position at which the connecting rod (411) rotationally abuts against the fixed block (417).

7. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 5, characterized in that, Open grooves (421) are formed in the top of the inner ring shell (49) and the outer ring shell (410), and the open grooves (421) are adapted to extend the plate (414) through; Support plates (422) are arranged at the two ends of the inner ring shell (49) and fixedly connected to the rack (41).

8. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 5, characterized in that, A driving motor (423) is arranged at the outer end of the central shaft (47) and adapted to drive the central shaft (47) to rotate; the driving motor (423) is a stepping motor.

9. The recovery system for recovering wolframite from a weathered tungsten polymetallic ore according to claim 6, characterized in that, A water spraying opening is arranged at the bottom of the rack (41), and a high-pressure water spraying head (424) is arranged in the water spraying opening and adapted to be connected to an external water pipe; and a discharging opening (425) is arranged at the bottom of the magnetic rotating drum (42); A steering motor (426) is arranged at the end of the magnetic rotating drum (42) away from the driving motor (423), and a fixed cylinder is arranged at the output of the steering motor (426) and connected to the outer ring shell (410); After the travel switch (420) is triggered, the high-pressure water spraying head (424) and the steering motor (426) are adapted to be triggered to open and close.

Images