Drum ore washer for wet smelting of laterite-nickel ore

Abstract

The present invention relates to a drum ore washer for wet smelting of laterite-nickel ore. The drum ore washer comprises a mounting rack, a screening assembly, an adjuster and an ore washing assembly, wherein the screening assembly comprises a rack, a drum, a screen cylinder and a driving assembly, the drum is rotationally installed on the rack in the axis of a first direction, the screen cylinder is sleeved in the drum, a feeding port and a discharging port are respectively provided at opposite ends of the screen cylinder in the first direction, the screen cylinder is gradually inclined downwards in a direction from the feeding port to the discharging port, a plurality of screen holes are formed in a cylinder wall of the screen cylinder, a baffle protrudes from an inner side wall of the screen cylinder, the baffle and the screen cylinder are obliquely arranged in a radial direction and are located at the discharging port, the driving assembly is connected to the drum, the rack is movably arranged on the mounting rack such that an inclination angle of the screen cylinder is adjustable, the adjuster is connected to the rack, and the ore washing assembly is arranged on the rack. The drum ore washer of the present invention can retard a moving speed of ore in the direction of the discharging port, prolong retention time of the ore in the screen cylinder, improve the ore washing efficiency and also improve a washing effect.

Description

A drum ore washer for hydrometallurgy of laterite nickel ore Technical Field

[0001] The present invention relates to the technical field of ore processing equipment, in particular to a cylindrical ore washer for wet smelting of laterite nickel ore. Background Art

[0002] Drum ore washers are large-scale equipment used to clean ore in metallurgical mining, steel, metallurgy, chemical, and building materials industries. Ore washing removes clay from ore and is widely used in various ore washing and desludging processes to eliminate the impact and harm of ore slime on subsequent processes and achieve excellent separation performance.

[0003] CN218774957U discloses an adjustable cylindrical ore washer, comprising a bottom plate, a cylindrical ore washer body and an adjuster; the bottom plate is symmetrically provided with threaded through grooves, the upper end surface of the bottom plate is symmetrically provided with multiple sets of fixing seats, the upper end surface of the fixing seat is provided with an inwardly recessed rotating groove, an auxiliary roller is rotatably connected in the rotating groove, the outer wall of the auxiliary roller is provided with an inwardly recessed recess, the outer wall of the cylindrical ore washer body is symmetrically provided with circular rings, the circular rings are installed in the recessed groove, and the outer wall of the cylindrical ore washer body is provided with an external gear ring.

[0004] However, the drum ore washer body in the above-mentioned prior art is relatively large in size, the ore stays in the drum ore washer body for a short time, and the cleaning effect is relatively poor.

[0005] Summary of the Invention

[0006] In view of this, it is necessary to provide a cylindrical ore washer for wet smelting of laterite nickel ore to solve the technical problems in the existing technology that the cylindrical ore washer body is large, the ore stays in the cylindrical ore washer body is short, and the cleaning effect is poor.

[0007] The present invention provides a drum ore washer for hydrometallurgy of laterite nickel ore, the drum ore washer for hydrometallurgy of laterite nickel ore comprising:

[0008] Mounting rack;

[0009] The sieve drum is provided with a first end fixedly mounted on the frame, and the sieve drum is provided with a first end fixedly mounted on the frame, and the sieve drum is provided with a first end fixedly mounted on the frame, and the sieve drum is provided with a second end fixedly mounted on the frame,

[0010] an adjuster, provided on the mounting frame and connected to the frame, so that when the frame moves to a set position, the adjuster fixes the frame;

[0011] a collecting tank, provided corresponding to the liquid outlet, for collecting the slurry and ores with smaller diameters discharged from the liquid outlet;

[0012] A concentration detection device is provided in the collection tank, and is used to detect the concentration of the material in the collection tank;

[0013] an ore washing assembly, provided on the frame, for injecting high-pressure water into the screen drum from the feed port to clean the ore;

[0014] The control device is electrically connected to the regulator, the ore washing component and the concentration detection device respectively, so as to control the operation of the regulator and the ore washing component according to the concentration.

[0015] Optionally, the baffle is arranged in an arc shape.

[0016] Optionally, a plurality of baffles are provided, and the plurality of baffles are spirally arranged at intervals along the radial direction of the screen drum.

[0017] Optionally, the frame has a first end and a second end arranged opposite to each other along the first direction, the first end is rotatably mounted on the mounting frame along an axis in the second direction, so that the inclination angle of the frame can be adjusted, wherein the feed port is arranged near the first end;

[0018] The adjuster is connected to the second end so that when the frame rotates to a set angle, the adjuster fixes the frame.

[0019] Optionally, the regulator includes a connecting plate and a driver, the connecting plate is movably mounted on the mounting frame in a vertical direction, and the upper side of the connecting plate abuts against the second end, the driver is provided on the mounting frame, and the driver is connected to the connecting plate for driving the connecting plate to move.

[0020] Optionally, the inner wall of the sieve cylinder is provided with a plurality of protrusions, and the plurality of protrusions are arranged in an array.

[0021] Optionally, the protrusion is extended along the radial direction of the sieve drum, and multiple protrusions are arranged at intervals along the circumference of the sieve drum. Multiple protrusions constitute a protrusion group, and multiple protrusion groups are provided, and multiple protrusion groups are arranged at intervals along the radial direction of the sieve drum.

[0022] Optionally, the protrusion is extended along the circumference of the sieve drum, and multiple protrusions are arranged at intervals along the circumference of the sieve drum. Multiple protrusions constitute a protrusion group, and multiple protrusion groups are provided, and multiple protrusion groups are arranged at intervals along the radial direction of the sieve drum.

[0023] Optionally, the driving assembly includes two rotating shafts and a driving motor, the two rotating shafts are located on opposite sides of the cylinder along the second direction, each rotating shaft is rotatably installed on the frame along the axis in the first direction, each rotating shaft abuts against the outer side surface of the cylinder, and the driving motor is connected to one of the rotating shafts to drive the rotating shaft to rotate, wherein the first direction and the second direction are arranged perpendicular to each other.

[0024] Optionally, the ore washing assembly includes a water source device, a water pump, a water inlet pipe and a regulating valve, one end of the water inlet pipe is connected to the water source device through the water pump, and the other end of the water inlet pipe extends from the feed port into the screen drum, and the regulating valve is arranged on the water inlet pipe, and the regulating valve is used to adjust the flow rate of the water inlet pipe.

[0025] Compared with the prior art, the drum ore washer for wet smelting of laterite nickel ore provided by the present invention has a frame movably arranged on the mounting frame, a screen drum is rotatably mounted on the frame, a feed port and a discharge port are arranged at opposite ends of the screen drum, and the screen drum is tilted downward from the feed port to the discharge port, a baffle is arranged inside the screen drum, a driving assembly is connected to the screen drum, and the ore washing assembly injects high-pressure water flow into the screen drum from the feed port. When in use, the screen drum is first driven to rotate by the driving assembly, and then ore with soil is fed into the screen drum from the feed port. As the screen drum rotates and The device is tilted downward, so the ore rolls in the screen drum and gradually moves toward the discharge port under the action of its own gravity. At the same time, the ore washing component sprays high-pressure water to clean the ore, so that the mud and ore with smaller diameters are discharged from the screen holes to the outside of the screen drum and eventually enter the collection pool. Finally, the cleaned ore with larger diameter is discharged from the screen drum from the discharge port. By setting a baffle, the speed of the ore moving toward the discharge port can be blocked, and the residence time of the ore in the screen drum can be extended, thereby improving the washing efficiency and the cleaning effect, and also reducing water consumption. In addition, the baffle increases the surface area of ​​the inner side of the screen drum, thereby increasing the contact area with the ore. In this way, while ensuring the contact area, it has the advantage of being small in size compared to existing ore washers, reducing the floor space occupied by the equipment and improving the space utilization rate of the factory building.

[0026] The frame is movably arranged on the mounting frame, so that the screen drum on the frame is also movably arranged, thereby changing the inclination angle of the screen drum. The inclination angle of the screen drum can be adjusted in time according to the concentration of the material in the collection pool, thereby achieving the purpose of adjusting the residence time of the ore in the screen drum. At the same time, by controlling the water inlet of the ore washing component, water is saved while ensuring the cleaning of the ore, energy saving and environmental protection.

[0027] The regulator and ore washing components are controlled by a control device, which has a high degree of automation and can be adjusted in real time without manual intervention, thus reducing the labor intensity of workers.

[0028] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] FIG1 is a schematic structural diagram of an embodiment of a cylindrical ore washer for hydrometallurgy of laterite nickel ore provided by the present invention;

[0031] FIG2 is a front view of the cylindrical ore washer used for hydrometallurgy of laterite nickel ore in FIG1 ;

[0032] FIG3 is a perspective schematic diagram of the mounting frame in FIG1 ;

[0033] FIG4 is a front view of the mounting frame in FIG3 ;

[0034] FIG5 is a front view of the frame and screen drum portion in FIG1 ;

[0035] FIG6 is a perspective schematic diagram of the frame and screen drum portion in FIG5 ;

[0036] FIG7 is a perspective schematic diagram of the screen drum and the cylinder portion in FIG1 ;

[0037] FIG8 is a cross-sectional view of the screen drum and the cylinder portion in FIG7;

[0038] FIG9 is a partial cross-sectional view of the screen drum and the cylinder portion in FIG8 .

[0039] Explanation of the accompanying drawings: 1-mounting frame, 2-frame, 21-roller, 3-screen drum, 31-protrusion, 32-baffle, 33-sieve hole, 34-feed port, 35-discharge port, 4-drive assembly, 41-rotating shaft, 42-drive motor, 5-cylinder, 51-liquid outlet, 6-regulator, 61-connecting plate, 611-chute, 62-guide column, 63-driver, 7-collection tank. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0041] Referring to Figures 1 to 3, the drum ore washer for wet smelting of laterite nickel ore includes a mounting frame 1, a screening assembly, a regulator 6, a collecting tank 7, a concentration detection device, a washing assembly and a control device; the screening assembly includes a frame 2, a cylinder 5, a screen drum 3 and a drive assembly 4, the cylinder 5 is rotatably mounted on the frame 2 along an axis in a first direction, the screen drum 3 is sleeved in the cylinder 5 and is coaxially arranged with the screen drum 3, and the screen drum 3 is respectively provided with a feed port 3 at two opposite ends along the first direction. 4 and a discharge port 35, the sieve drum 3 is gradually tilted downward from the feed port 34 to the discharge port 35, the wall of the sieve drum 3 is provided with a plurality of sieve holes 33, the sieve holes 33 are connected to the cylinder 5 and the sieve drum 3, the inner side wall of the sieve drum 3 is convexly provided with a baffle 32, the baffle 32 is inclined with respect to the radial direction of the sieve drum 3, and is located at the discharge port 35, the cylinder 5 is also provided with a liquid outlet 51, the liquid outlet 51 is located on the cylinder 5 near the discharge port At one end of 35, the driving assembly 4 is provided on the frame 2, and the driving assembly 4 is connected to the cylinder 5 for driving the screen drum 3 to rotate, wherein the frame 2 is movably provided on the mounting frame 1 so that the inclination angle of the screen drum 3 can be adjusted; the regulator 6 is provided on the mounting frame 1 and connected to the frame 2 so that when the frame 2 moves to a set position, the regulator 6 fixes the frame 2; the collecting tank 7 is provided corresponding to the liquid outlet 51, and the collecting tank 7 is used to collect the mud and ore with smaller diameter discharged from the liquid outlet 51; the concentration detection device is provided in the collecting tank 7, and the concentration detection device is used to detect the concentration of the material in the collecting tank 7; the ore washing assembly is provided on the frame 2, and the ore washing assembly is used to inject high-pressure water flow from the feed port 34 into the sieve drum 3 to clean the ore; the control device is electrically connected to the regulator 6, the ore washing assembly and the concentration detection device respectively to control the operation of the regulator 6 and the ore washing assembly according to the concentration.

[0042] The drum ore washer provided by the present invention for wet smelting of laterite nickel ore has a frame 2 movably arranged on the mounting frame 1, a screen drum 3 is rotatably mounted on the frame 2, a feed port 34 and a discharge port 35 are provided at opposite ends of the screen drum 3, and the screen drum 3 is tilted downward from the feed port 34 to the discharge port 35, a baffle 32 is provided inside the screen drum 3, a driving assembly 4 is connected to the screen drum 3, and the ore washing assembly injects high-pressure water flow into the screen drum 3 from the feed port 34. When in use, the screen drum 3 is first driven to rotate by the driving assembly 4, and then ore with soil is fed into the screen drum 3 from the feed port 34. Since the screen drum 3 The ore is rotated and tilted downward, so the ore rolls in the screen drum 3 and gradually moves toward the discharge port 35 under the action of its own gravity. At the same time, the ore washing component sprays high-pressure water to clean the ore, so that the mud and the ore with smaller diameter are discharged from the screen hole 33 to the outside of the screen drum 3 and finally enter the collection tank 7. Finally, the cleaned ore with larger diameter is discharged from the screen drum 3 from the discharge port 35. By setting the baffle 32, the speed of the ore moving toward the discharge port 35 can be blocked, and the residence time of the ore in the screen drum 3 can be extended, thereby improving the washing efficiency and the cleaning effect, and also reducing water consumption. In addition, the baffle 32 increases the surface area of ​​the inner side of the screen drum 3, thereby increasing the contact area with the ore. In this way, while ensuring the contact area, it has the advantage of being small in size compared to existing ore washers, reducing the floor space occupied by the equipment and improving the space utilization rate of the factory building.

[0043] The frame 2 is movably arranged on the mounting frame 1, so that the screen drum 3 on the frame 2 is also movably arranged, thereby changing the inclination angle of the screen drum 3. The inclination angle of the screen drum 3 can be adjusted in time according to the concentration of the material in the collection tank 7, thereby achieving the purpose of adjusting the residence time of the ore in the screen drum 3. At the same time, by controlling the water inlet of the ore washing component, while ensuring the cleaning of the ore, water is saved, energy saving and environmental protection are achieved.

[0044] The regulator 6 and the ore washing assembly are controlled by a control device, which has a high degree of automation and can be adjusted in real time without manual intervention, thereby reducing the labor intensity of workers.

[0045] Please refer to Figures 7 to 9. It should be noted that the sieve drum 3 is arranged in a cylindrical shape, and a channel is provided therein. The two ends of the channel constitute the feed port 34 and the discharge port 35 respectively. The sieve holes 33 are provided on the side wall of the sieve drum 3. The sieve holes 33 connect the channel with the outside world. A plurality of the sieve holes 33 are arranged in an array on the side wall of the sieve drum 3, and the first direction is consistent with the radial direction of the sieve drum 3.

[0046] Furthermore, the shape and size of the sieve hole 33 are not limited and can be set according to actual usage. In this embodiment, the sieve hole 33 is set as an elongated hole and extends along the first direction. The sieve hole 33 can screen ores below 350 mm.

[0047] Furthermore, in this embodiment, referring to Figures 8 and 9 , the baffle 32 is arranged in an arc shape. This arrangement prolongs the residence time of the ore in the screen drum 3 and does not hinder the ore from being discharged from the discharge port 35 .

[0048] Furthermore, in this embodiment, a plurality of baffles 32 are provided, and the plurality of baffles 32 are arranged at intervals in a spiral shape along the radial direction of the screen drum 3. The baffles 32 are arranged in an arc shape, and the plurality of baffles 32 are on the same spiral line, which blocks the ore while ensuring the smooth flow of the ore.

[0049] Furthermore, the end faces of both ends of the cylinder 5 are provided with openings connected to its internal space, and the openings are adapted to the diameter of the sieve drum 3. The sieve drum 3 is arranged in the cylinder 5 and is coaxial with the cylinder 5. The two ends of the sieve drum 3 extend out of the cylinder 5 from the two openings respectively, which is convenient for the installation of the sieve drum 3 and the cylinder 5 and the ore entering and exiting the sieve drum 3. At the same time, the cylinder 5 is provided with a liquid outlet 51 connected to its internal space. When in use, mud and ore with smaller diameter fall into the cylinder 5 from the sieve hole 33. Since the cylinder 5 is coaxial with the sieve drum 3, the cylinder 5 is also inclined, so that the mud and ore with smaller diameter are discharged from the liquid outlet 51 to the outside of the cylinder 5 under the action of their own gravity, which is convenient for collecting ore with smaller diameter.

[0050] Furthermore, in this embodiment, referring to Figures 1 and 2, the frame 2 has a first end and a second end disposed opposite each other along the first direction, the first end being rotatably mounted on the mounting frame 1 along an axis in the second direction so that the inclination angle of the frame 2 can be adjusted, wherein the feed port 34 is disposed near the first end; the adjuster 6 is disposed on the mounting frame 1 and connected to the second end, so that when the frame 2 rotates to a set angle, the adjuster 6 is used to fix the frame 2. In this configuration, the frame 2 rotates about the first end to adjust the distance between the second end and the mounting frame 1, and the feed port 34 is disposed near the first end, and the discharge port 35 is disposed near the second end, so that the distance between the discharge port 35 and the mounting frame 1 changes, thereby achieving the purpose of adjusting the inclination angle of the screen drum 3. After the frame 2 is adjusted, the adjuster 6 is connected to the second end to fix the frame 2 and prevent it from rotating accidentally.

[0051] Furthermore, in this embodiment, referring to Figures 2 to 4, the adjuster 6 includes a connecting plate 61 and a driver 63. The connecting plate 61 is movably mounted on the mounting frame 1 in a vertical direction, and the upper side of the connecting plate 61 abuts against the second end. The driver 63 is provided on the mounting frame 1 and connected to the connecting plate 61 for driving the connecting plate 61 to move. By raising and lowering the connecting plate 61, the second end of the frame 2 slides on the upper side of the connecting plate 61, thereby driving the frame 2 to rotate. After the frame 2 rotates to a set position, the connecting plate 61 stops moving to fix the frame 2.

[0052] Furthermore, there is no specific limitation on the driver 63. The driver 63 may be a cylinder, the push rod of the cylinder is connected to the connecting plate 61, and the connecting plate 61 is driven to move by the cylinder. Alternatively, the driver 63 may be a hydraulic cylinder, the push rod of the hydraulic cylinder is connected to the connecting plate 61, and the connecting plate 61 is driven to move by the hydraulic cylinder. In this embodiment, the driver 63 is an electric cylinder, the push rod of the electric cylinder is connected to the connecting plate 61, and the connecting plate 61 is driven to move by the electric cylinder.

[0053] Further, referring to Figures 3 to 4, the mounting frame 1 is provided with a plurality of guide holes, and the plurality of guide holes are arranged in an array; the adjuster 6 also includes a plurality of guide columns 62, and the plurality of guide columns 62 correspond one-to-one to the plurality of guide holes. Each of the guide columns 62 is slidably installed in the guide hole along the vertical direction, and the upper end of each of the guide columns 62 is connected to the connecting plate 61 to drive the connecting plate 61 to move through the guide column 62, thereby improving the movement accuracy of the connecting plate 61.

[0054] Furthermore, referring to FIG5 , a roller 21 is provided at the bottom of the frame 2. The roller 21 is rotatably arranged along an axis in the second direction and abuts against the upper side of the connecting plate 61. This arrangement converts the sliding friction between the frame 2 and the connecting plate 61 into rolling friction, thereby reducing friction between the frame 2 and the connecting plate 61 and reducing wear.

[0055] Furthermore, referring to FIG3 , a slide groove 611 is provided on the upper side of the connecting plate 61. The slide groove 611 extends along the first direction. The roller 21 is adapted to fit within the slide groove 611. The roller 21 is rotatably mounted within the slide groove 611. The roller 21 is limited by two opposing side walls of the slide groove 611 to prevent the roller 21 from deviating.

[0056] Furthermore, in this embodiment, the inner wall of the screen drum is provided with a plurality of protrusions, and the plurality of protrusions are arranged in an array. By providing the protrusions 31, on the one hand, due to the obstruction of the protrusions 31, when the screen drum 3 rotates, it can block and drive the ore to rise, and then the ore falls onto the protrusions 31 below under the action of gravity, so that the adhering ore is separated and the ore can be crushed. On the other hand, the protrusions 31 can also block the speed of the ore moving toward the discharge port 35, prolonging the residence time of the ore in the screen drum 3, improving the washing efficiency while improving the cleaning effect, and also reducing water consumption. In addition, the protrusions 31 increase the surface area of ​​the inner side of the screen drum 3, thereby increasing the contact area with the ore. In this way, while ensuring the contact area, it has the advantage of being small in size compared to existing ore washers, reducing the floor space occupied by the equipment and improving the space utilization rate of the factory building.

[0057] Further, referring to Figures 8 and 9, there is no restriction on the location of the protrusion 31. To avoid interference with the sieve holes 33, in this embodiment, the protrusion 31 is provided on the side wall of the sieve cylinder 3 between two adjacent sieve holes 33.

[0058] Furthermore, the specific form of the protrusion 31 provided on the sieve drum 3 is not limited. In this embodiment, the protrusion 31 is connected to the inner wall of the sieve drum 3 by welding.

[0059] Furthermore, the plurality of protrusions 31 can be arranged in various ways.

[0060] In one embodiment, the protrusions 31 extend along the radial direction of the screen drum 3. A plurality of the protrusions 31 are arranged at intervals along the circumference of the screen drum 3. The plurality of protrusions 31 constitute a protrusion group. A plurality of the protrusion groups are provided, and the plurality of the protrusion groups are arranged at intervals along the radial direction of the screen drum 3. This arrangement can block the ore and drive the ore upward when the screen drum 3 rotates. When the ore is driven above the screen drum 3, the ore breaks away from the protrusions 31 under its own gravity and falls onto the protrusions 31 below the screen drum 3, thereby separating the adhering ore. At the same time, under the action of the impact force, some of the ore can be crushed, thereby improving the ore washing efficiency.

[0061] In another embodiment, the protrusions 31 extend along the circumference of the screen drum 3, and a plurality of the protrusions 31 are arranged at intervals along the circumference of the screen drum 3. The plurality of protrusions 31 constitute a protrusion group, and a plurality of the protrusion groups are provided, and the plurality of protrusion groups are arranged at intervals along the radial direction of the screen drum 3. This arrangement can slow down the movement of ore toward the discharge port 35, prolong the residence time of the ore in the screen drum 3, and improve the cleaning effect.

[0062] In another embodiment, the protrusions 31 are arranged obliquely with respect to the radial direction of the screen drum 3, and are arranged in an arc shape. A plurality of the protrusions 31 are arranged at intervals along a spiral line, and the plurality of protrusions 31 form a protrusion group. The plurality of protrusion groups are provided and are arranged at intervals along the circumference of the screen drum 3. This arrangement can not only slow down the movement of the ore, but also carry the ore to a higher place.

[0063] In this embodiment, referring to Figures 8 and 9, the plurality of protrusions 31 include a plurality of first protrusions and a plurality of second protrusions. The first protrusions extend in the radial direction of the sieve drum 3, the plurality of first protrusions are spaced apart circumferentially of the sieve drum 3, and the plurality of first protrusions constitute a first protrusion group. The plurality of first protrusions in the first protrusion group are spaced apart in the radial direction of the sieve drum 3. The second protrusions extend in the circumferential direction of the sieve drum 3, the plurality of second protrusions are spaced apart circumferentially of the sieve drum 3, and the plurality of second protrusions constitute a second protrusion group. The plurality of second protrusion groups are spaced apart in the radial direction of the sieve drum 3, wherein the plurality of first protrusion groups and the plurality of second protrusion groups are alternately arranged. This arrangement can slow down the movement of ore, carry ore to a higher level, and ensure the density of the sieve holes 33, thereby avoiding interference with the sieve holes 33.

[0064] Furthermore, the cylinder 5 is fixedly connected to the sieve drum 3, and the cylinder 5 rotates along with the sieve drum 3. Please refer to Figures 5 to 6. The drive assembly 4 includes two rotating shafts 41 and a drive motor 42. The two rotating shafts 41 are located on opposite sides of the cylinder 5 along the second direction. Each rotating shaft 41 is rotatably mounted on the frame 2 along an axis in the first direction. Each rotating shaft 41 abuts against the outer side of the cylinder 5. The drive motor 42 is connected to one of the rotating shafts 41 to drive the rotating shaft 41 to rotate. The first direction and the second direction are arranged perpendicular to each other. Since the rotating shafts 41 abut against the cylinder 5, when the drive motor 42 rotates and drives one of the rotating shafts 41 to rotate, the friction between the rotating shaft 41 and the cylinder 5 drives the cylinder 5 to rotate, thereby achieving the purpose of driving the sieve drum 3 to rotate, while the other rotating shaft 41 plays a role of supporting and assisting rotation. The cylinder 5 can be driven to rotate by the two rotating shafts 41 and the drive motor 42. The structure is simple, the cost is low, and it is easy to assemble.

[0065] Furthermore, in this embodiment, the ore washing assembly includes a water source device, a water pump, a water inlet pipe and a regulating valve. One end of the water inlet pipe is connected to the water source device through the water pump, and the other end of the water inlet pipe extends from the feed port 34 into the screen drum 3. The regulating valve is provided on the water inlet pipe, and the regulating valve is used to adjust the flow rate of the water inlet pipe.

[0066] Furthermore, in this embodiment, the drum ore washer for wet smelting of laterite nickel ore further includes a conveying device, which is provided corresponding to the feed port 34 and is used to convey ore into the screen drum 3 .

[0067] Furthermore, in this embodiment, the control device is electrically connected to the drive motor 42 in the drive component 4, the concentration detection device, the regulating valve, the driver 63 in the regulator 6, and the conveying device, respectively, so as to control the operation of the drive motor 42 in the drive component 4, the concentration detection device, the regulating valve, the driver 63 in the regulator 6, and the conveying device through the control device.

[0068] The specific working process is as follows: the control device obtains the concentration value detected by the concentration detection device, then compares the concentration value with the set concentration value, and controls the operation of the regulating valve and the driver 63 in the regulator 6. Specifically, when the concentration value is greater than the set concentration value, the regulating valve is controlled to reduce the flow rate of water entering the sieve drum 3, and the driver 63 in the regulator 6 is controlled to drive the connecting plate 61 to move vertically upward, thereby reducing the inclination angle of the sieve drum 3. When the concentration value is less than the set concentration value, the regulating valve is controlled to increase the flow rate of water entering the sieve drum 3, and the driver 63 in the regulator 6 is controlled to drive the connecting plate 61 to move vertically downward, thereby increasing the inclination angle of the sieve drum 3. At the same time, the control device can also control the rotation speed of the cylinder 5 by controlling the drive motor 42, and control the conveying device to control the amount of ore entering the sieve drum 3.

[0069] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A drum ore washer for hydrometallurgy of laterite nickel ore, characterized in that: It includes: Mounting frame; The sieve drum is provided with a plurality of sieve holes, the sieve holes being connected to the sieve drum by the cam, and the sieve drum is provided with a plurality of sieve holes on the sieve drum wall, the sieve holes being connected to the sieve drum by the cam, and the sieve drum is provided with a baffle which is inclined with respect to the radial direction of the sieve drum and is located at the discharge port. The sieve drum is also provided with a liquid outlet which is located at one end of the sieve drum close to the discharge port. The drive assembly is provided on the frame and connected with the cylinder body for driving the sieve drum to rotate. The frame is movably provided on the mounting frame so that the inclination angle of the sieve drum can be adjusted. An adjuster is disposed on the mounting frame and connected to the frame, so that when the frame moves to a set position, the adjuster fixes the frame; A collecting tank, arranged corresponding to the liquid outlet, and used for collecting the mud and ores with smaller diameters discharged from the liquid outlet; A concentration detection device is disposed in the collection tank, and is used to detect the concentration of the material in the collection tank; An ore washing assembly is arranged on the frame, and is used to inject high-pressure water flow from the feed port into the screen drum to wash the ore; The control device is electrically connected to the regulator, the ore-washing component and the concentration detection device respectively, so as to control the regulator and the ore-washing component to work according to the concentration.

2. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 1, characterized in that: The baffle is arranged in an arc shape.

3. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 2, characterized in that: A plurality of baffles are provided, and the baffles are arranged at intervals in a spiral shape along the radial direction of the screen drum.

4. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 1, characterized in that: The frame has a first end and a second end which are arranged opposite to each other along the first direction, and the first end is rotatably mounted on the mounting frame along an axis in the second direction so that the inclination angle of the frame can be adjusted, wherein the feed port is arranged close to the first end; The adjuster is connected to the second end so that when the frame rotates to a set angle, the adjuster fixes the frame.

5. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 4, characterized in that: The regulator includes a connecting plate and a driver. The connecting plate is movably mounted on the mounting frame along a vertical direction, and the upper side of the connecting plate abuts against the second end. The driver is arranged on the mounting frame and connected to the connecting plate for driving the connecting plate to move.

6. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 1, characterized in that: The inner cylinder wall of the screen cylinder is provided with a plurality of protrusions, and the plurality of protrusions are arranged in an array.

7. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 6, characterized in that: The protrusions are extended along the radial direction of the sieve drum, and a plurality of the protrusions are arranged at intervals along the circumference of the sieve drum. The plurality of protrusions constitute a protrusion group, and a plurality of the protrusion groups are provided, and the plurality of the protrusion groups are arranged at intervals along the radial direction of the sieve drum.

8. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 6, characterized in that: The protrusions are extended along the circumference of the sieve drum, and a plurality of the protrusions are arranged at intervals along the circumference of the sieve drum. The plurality of protrusions constitute a protrusion group, and a plurality of the protrusion groups are provided, and the plurality of the protrusion groups are arranged at intervals along the radial direction of the sieve drum.

9. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 1, characterized in that: The driving assembly includes two rotating shafts and a driving motor, the two rotating shafts are located on opposite sides of the cylinder along the second direction, each of the rotating shafts is rotatably installed on the frame along the axis in the first direction, each of the rotating shafts abuts against the outer side surface of the cylinder, and the driving motor is connected to one of the rotating shafts to drive the rotating shaft to rotate, wherein the first direction and the second direction are arranged perpendicular to each other.

10. The drum ore washer for laterite nickel ore hydrometallurgy according to claim 1, characterized in that: The ore washing assembly includes a water source device, a water pump, a water inlet pipe and a regulating valve. One end of the water inlet pipe is connected to the water source device through the water pump, and the other end of the water inlet pipe extends from the feed port into the screen drum. The regulating valve is arranged on the water inlet pipe, and the regulating valve is used to adjust the flow rate of the water inlet pipe.

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