High-precision magnetic separation equipment for nickel ore beneficiation

Abstract

The utility model discloses high-precision magnetic separation equipment for nickel ore dressing, and relates to the technical field of magnetic separation equipment. The magnetic separation device comprises a lower tank body and an upper tank body, the upper tank body is detachably installed at the opening end of the lower tank body, a magnetic separation mechanism is arranged in the lower tank body, and a discharging mechanism is arranged in the upper tank body. The magnetic separation mechanism comprises a first magnetic attraction seat, a second magnetic attraction seat and a third magnetic attraction seat, the first magnetic attraction seat, the second magnetic attraction seat and the third magnetic attraction seat are of conical magnet structures, and the diameter of the bottom end of the third magnetic attraction seat is larger than that of the bottom end of the second magnetic attraction seat; through cooperation of the discharging mechanism and the magnetic separation mechanism and rotation of a special-shaped discharging pipe in the discharging mechanism, nickel ore is dispersed and evenly falls on a first magnetic attraction base, and then under the action of a second magnetic attraction base and a third magnetic attraction base, the nickel ore slides downwards through the first magnetic attraction base, the second magnetic attraction base and the third magnetic attraction base; and iron-containing minerals in the nickel ore are adsorbed for three times, so that the magnetic separation effect of the nickel ore is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic separation equipment, specifically a high-precision magnetic separation equipment for nickel ore beneficiation. Background Technology

[0002] Nickel is a silvery-white metal that is hard, ductile, ferromagnetic, highly polishable, and corrosion-resistant. Its chemical symbol is Ni, atomic number 28, relative atomic mass 58.69, belonging to group VIII of the periodic table, density 8.9 g / cm³, melting point 1455℃, and boiling point 2730℃.

[0003] Nickel forms a dense oxide film on its surface in the air, turning it dark and preventing further oxidation. Nickel is the fifth most abundant mineral on Earth, after silicon, oxygen, iron, and magnesium. Nickel ore constitutes 0.018% of the Earth's crust. Major nickel ore minerals include pyrite [(Ni,Fe)9S8], nickel-magnesium silicate [(Ni,Mg)SiO3·nH2O], goethite or chrysoclase (NiS), and red nickel ore (NiAs). Manganese nodules on the seabed contain large reserves of nickel, representing an important prospective nickel resource.

[0004] Nickel is commonly used in the manufacture of stainless steel, alloy structural steel and other steel products, high-nickel-based alloys, electroplating and batteries, and is widely used in various military manufacturing industries such as aircraft and radar, as well as civilian machinery manufacturing and electroplating industries.

[0005] Nickel ore beneficiation processes generally consist of crushing, grinding, flotation, magnetic separation, and cleaning. Among these, the magnetic separation process requires the use of magnetic separation equipment to separate strongly magnetic iron-bearing minerals from the concentrate. However, existing magnetic separation equipment still has some shortcomings:

[0006] In the process of nickel ore magnetic separation, existing magnetic separation equipment generally uses a single magnetic chuck to adsorb iron-containing minerals in nickel ore, and the number of adsorption cycles is relatively small. At the same time, since the iron-containing minerals are mixed with other minerals, it is difficult to fully adsorb the iron-containing minerals during magnetic adsorption, resulting in poor magnetic adsorption effect of nickel ore. Utility Model Content

[0007] In order to solve the above problems, the purpose of this utility model is to provide a high-precision magnetic separation equipment for nickel ore beneficiation.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: a high-precision magnetic separation device for nickel ore beneficiation, comprising a lower tank and an upper tank, wherein the upper tank is detachably installed at the opening end of the lower tank, a magnetic separation mechanism is provided inside the lower tank, and a feeding mechanism is provided inside the upper tank;

[0009] The magnetic separation mechanism includes a first magnetic base, a second magnetic base, and a third magnetic base. The first, second, and third magnetic bases are cone-shaped magnet structures. The diameter of the bottom end of the third magnetic base is larger than the diameter of the bottom end of the second magnetic base, and the diameter of the bottom end of the second magnetic base is larger than the diameter of the bottom end of the first magnetic base.

[0010] The magnetic separation mechanism also includes a first guide bucket and a second guide bucket. The first guide bucket is located outside the first magnetic suction base, and the second guide bucket is located outside the second magnetic suction base.

[0011] The feeding mechanism includes a storage tank, which is fixedly installed on the peripheral wall of the upper tank body. A conical hopper is fixedly installed at the bottom of the storage tank, and a feeding hole is opened on the bottom wall of the conical hopper. A special-shaped feeding pipe is rotatably installed at the bottom of the upper tank body. One end of the special-shaped feeding pipe is vertically aligned with the feeding hole, and the other end of the special-shaped feeding pipe is located above the first magnetic suction base.

[0012] A servo motor is fixedly installed on the bottom wall of the upper tank. A rotating rod is fixedly installed on the drive output end of the servo motor. A transmission gear is fixedly installed on one end of the rotating rod and on the irregular feeding pipe. The two transmission gears are meshed and connected.

[0013] Preferably, a collection tank is fixedly provided on the bottom wall of the lower tank, and a discharge hopper is fixedly provided at the bottom of the collection tank.

[0014] Preferably, a guide plate is fixedly provided on the bottom wall of the collection tank, and the guide plate is inclined toward the side of the discharge hopper.

[0015] Preferably, a lower flange is fixedly provided at the open end of the lower tank body, and an upper flange is fixedly provided at the bottom of the upper tank body. A number of assembly bolts are threaded between the upper flange and the lower flange.

[0016] Preferably, a fixing ring is fixedly provided on the outer wall of the first magnetic base, the second magnetic base and the third magnetic base, and the outer wall of the fixing ring is provided with an arc-shaped surface.

[0017] Preferably, two mounting plates are detachably installed on the peripheral wall of the lower tank, and the first magnetic suction seat, the second magnetic suction seat, the third magnetic suction seat, the first guide bucket, and the second guide bucket are fixedly arranged between the two mounting plates.

[0018] Preferably, a plurality of mounting bolts are rotatably threaded on the outer wall of the lower tank, and one end of the mounting bolts is rotatably threaded to one end of the mounting plate.

[0019] Preferably, a washer is fixedly provided at one end of the irregularly shaped feeding tube, and the upper surface of the washer is in movable contact with the bottom of the feeding hole.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In this invention, through the cooperation of the feeding mechanism and the magnetic separation mechanism, the nickel ore is dispersed by the rotation of the irregularly shaped feeding pipe in the feeding mechanism and falls evenly onto the first magnetic suction seat. Then, through the action of the second and third magnetic suction seats, the nickel ore slides down through the first, second and third magnetic suction seats, and the iron-containing minerals in the nickel ore are adsorbed three times, thereby improving the magnetic separation effect of the nickel ore. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a high-precision magnetic separation device for nickel ore beneficiation according to the present invention.

[0024] Figure 2 This is a schematic diagram of the separation and cross-sectional structure of the upper and lower tanks of this utility model.

[0025] Figure 3 This is a schematic diagram of the connection and cross-sectional structure of the magnetic separation mechanism and the collection tank of this utility model.

[0026] Figure 4 This is a schematic diagram of the magnetic separation mechanism of this utility model.

[0027] Figure 5 This is a schematic diagram showing the structure of the feeding mechanism of this utility model, as well as the cross-sectional structure of the storage tank and the conical hopper.

[0028] Figure 6 This is a front view of the feeding mechanism and magnetic separation mechanism of this utility model.

[0029] In the diagram: 1. Lower tank; 2. Upper tank; 11. Lower flange; 12. Collection tank; 13. Discharge hopper; 14. Guide plate; 21. Upper flange; 22. Assembly bolt; 3. Magnetic separation mechanism; 31. Magnetic suction base No. 1; 32. Magnetic suction base No. 2; 33. Magnetic suction base No. 3; 34. Fixing ring; 35. Guide hopper No. 1; 36. Guide hopper No. 2; 37. Mounting plate; 38. Mounting bolt; 4. Discharge mechanism; 41. Storage tank; 42. Conical hopper; 43. Discharge hole; 44. Irregularly shaped discharge pipe; 45. Washer; 46. Servo motor; 47. Rotating rod; 48. Transmission gear. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example: Figure 1-6 As shown, this utility model provides a high-precision magnetic separation device for nickel ore beneficiation, including a lower tank 1 and an upper tank 2. The upper tank 2 is detachably installed at the open end of the lower tank 1. A lower flange 11 is fixedly installed at the open end of the lower tank 1, and an upper flange 21 is fixedly installed at the bottom of the upper tank 2. Several mounting bolts 22 are threaded between the upper flange 21 and the lower flange 11. By setting the mounting bolts 22, the upper tank 2 can be fixed at the open end of the lower tank 1 through the cooperation of the upper flange 21 and the lower flange 11. At the same time, the upper tank 2 can be disassembled for easy maintenance. A collection tank 12 is fixedly installed on the bottom wall of the lower tank 1, and a discharge hopper 13 is fixedly installed at the bottom of the collection tank 12. The collection tank 12 and the discharge hopper 13 allow the nickel ore after iron removal to fall into the collection tank 12 and then be discharged outward through the discharge hopper 13. A guide plate 14 is fixedly installed on the bottom wall of the collection tank 12. The guide plate 14 is inclined towards the side of the discharge hopper 13. By setting the guide plate 14, the discharge speed of the nickel ore in the collection tank 12 can be increased. A magnetic separation mechanism 3 is installed inside the lower tank 1, and a feeding mechanism 4 is installed inside the upper tank 2. By setting the magnetic separation mechanism 3 and the feeding mechanism 4, the feeding mechanism 4 can make the nickel ore to be removed from iron evenly distributed on the magnetic separation mechanism 3. The magnetic separation mechanism 3 can make the nickel ore fully dispersed, separate the iron-containing minerals in the nickel ore, and improve the magnetic separation effect of the nickel ore.

[0032] The magnetic separation mechanism 3 includes a first magnetic chuck 31, a second magnetic chuck 32, a third magnetic chuck 33, a first guide bucket 35, and a second guide bucket 36. The first magnetic chuck 31, the second magnetic chuck 32, and the third magnetic chuck 33 are conical magnetic structures. The diameter of the bottom end of the third magnetic chuck 33 is larger than the diameter of the bottom end of the second magnetic chuck 32, and the diameter of the bottom end of the second magnetic chuck 32 is larger than the diameter of the bottom end of the first magnetic chuck 31. By setting the first magnetic chuck 31, the second magnetic chuck 32, and the third magnetic chuck 33 with diameters increasing from small to large, when nickel ore falls onto the outer wall of the first magnetic chuck 31, the nickel ore can move along the outer wall of the first magnetic chuck 31. The ore slides down the wall onto the outer wall of the second magnetic suction seat 32, and then from the second magnetic suction seat 32 to the outer wall of the third magnetic suction seat 33. The first magnetic suction seat 31, the second magnetic suction seat 32, and the third magnetic suction seat 33 can adsorb iron-containing minerals in the nickel ore. A fixing ring 34 is fixedly installed on the outer wall of each of the three magnetic suction seats 31, 32, and 33. The outer wall of the fixing ring 34 has an arc-shaped surface. By setting the fixing ring 34, the sliding nickel ore passes through the fixing ring 34 and slides down, reducing the speed of the nickel ore's downward movement, thereby improving the magnetic separation effect of the nickel ore. The first guide bucket 35 is equipped with... The first magnetic suction seat 31 is placed outside the second magnetic suction seat 32, and the second guide bucket 36 is placed outside the second magnetic suction seat 32. By setting the first guide bucket 35 and the second guide bucket 36, the first guide bucket 35 can guide the nickel ore after the first magnetic separation, ensuring that the nickel ore slides to the upper end of the second magnetic suction seat 32. The second guide bucket 36 can guide the nickel ore after the second magnetic separation, ensuring that the nickel ore slides to the upper end of the third magnetic suction seat 33. Two mounting plates 37 are detachably installed on the peripheral wall of the lower tank 1. The first magnetic suction seat 31, the second magnetic suction seat 32, the third magnetic suction seat 33, the first guide bucket 35, and the second guide bucket 36 are fixedly installed. A number of mounting bolts 38 are threadedly installed on the outer wall of the lower tank 1, which is placed between two mounting plates 37. One end of the mounting bolts 38 is threadedly connected to one end of the mounting plate 37. By setting up the mounting plate 37 and the mounting bolts 38, when the mounting bolts 38 are removed, the first magnetic suction seat 31, the second magnetic suction seat 32, the third magnetic suction seat 33, the first guide bucket 35 and the second guide bucket 36 can be removed from the lower tank 1 as a whole through the mounting plate 37. This makes it convenient for the operators to clean the iron-containing minerals on the outer wall of the first magnetic suction seat 31, the second magnetic suction seat 32 and the third magnetic suction seat 33 for the next magnetic separation operation.

[0033] The feeding mechanism 4 includes a storage tank 41. During the nickel ore mining process, the nickel ore to be magnetically separated can be transported to the storage tank 41 via a conveyor. The storage tank 41 is fixedly mounted on the circumferential wall of the upper tank body 2. A conical hopper 42 is fixedly mounted at the bottom of the storage tank 41. A feeding hole 43 is opened on the bottom wall of the conical hopper 42. A shaped feeding pipe 44 is rotatably mounted at the bottom of the upper tank body 2. One end of the shaped feeding pipe 44 is vertically aligned with the feeding hole 43, and the other end of the shaped feeding pipe 44 is located above the first magnetic suction base 31. By setting up a conical hopper 42, a discharge hole 43, and a shaped discharge pipe 44, the nickel ore in the storage tank 41 can enter the shaped discharge pipe 44 through the conical hopper 42 and the discharge hole 43. By driving the shaped discharge pipe 44 to rotate, the shaped discharge pipe 44 can make the nickel ore fall evenly onto the outer wall of the first magnetic suction seat 31. A washer 45 is fixedly set at one end of the shaped discharge pipe 44. The upper surface of the washer 45 is in contact with the bottom of the discharge hole 43. By setting the washer 45, the sealing between the shaped discharge pipe 44 and the discharge hole 43 can be improved.

[0034] A servo motor 46 is fixedly installed on the bottom wall of the upper tank 2. A rotating rod 47 is fixedly installed on the drive output end of the servo motor 46. A transmission gear 48 is fixedly installed on one end of the rotating rod 47 and on the irregular feeding tube 44. The two transmission gears 48 are meshed and connected. By turning on the servo motor 46, the drive shaft of the servo motor 46 can make the rotating rod 47 rotate. The rotating rod 47 can make the irregular feeding tube 44 rotate through the transmission gear 48.

[0035] Working principle: When magnetic separation is required for the nickel ore after flotation, the nickel ore is first transported to the storage tank 41 by a conveyor. The nickel ore in the storage tank 41 enters the special-shaped feeding pipe 44 through the conical bucket 42 and the feeding hole 43. At this time, the operator turns on the servo motor 46. The drive shaft of the servo motor 46 causes the rotating rod 47 to rotate. The rotating rod 47 causes the special-shaped feeding pipe 44 to rotate through two transmission gears 48 (the rotation speed of the special-shaped feeding pipe 44 is controlled according to the rotation speed of the servo motor 46). The rotation of the special-shaped feeding pipe 44 makes the nickel ore fall evenly on the outer wall of the first magnetic suction seat 31.

[0036] At this time, the nickel ore slides evenly down along the first magnetic suction seat 31 onto the outer wall of the second magnetic suction seat 32, and then slides evenly down along the outer wall of the second magnetic suction seat 32 onto the outer wall of the third magnetic suction seat 33. The nickel ore then slides down along the outer wall of the third magnetic suction seat 33 into the collection tank 12. During this process, the first magnetic suction seat 31, the second magnetic suction seat 32, and the third magnetic suction seat 33 adsorb the iron-containing minerals in the nickel ore, thereby improving the magnetic separation effect of the nickel ore.

[0037] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-precision magnetic separation device for nickel ore beneficiation, comprising a lower tank body (1) and an upper tank body (2), characterized in that: The upper tank (2) is detachably installed at the opening end of the lower tank (1). The lower tank (1) is equipped with a magnetic separation mechanism (3), and the upper tank (2) is equipped with a feeding mechanism (4). The magnetic separation mechanism (3) includes a first magnetic base (31), a second magnetic base (32), and a third magnetic base (33). The first magnetic base (31), the second magnetic base (32), and the third magnetic base (33) are cone-shaped magnet structures. The diameter of the bottom end of the third magnetic base (33) is larger than the diameter of the bottom end of the second magnetic base (32), and the diameter of the bottom end of the second magnetic base (32) is larger than the diameter of the bottom end of the first magnetic base (31). The magnetic separation mechanism (3) further includes a first guide bucket (35) and a second guide bucket (36). The first guide bucket (35) is located outside the first magnetic suction seat (31), and the second guide bucket (36) is located outside the second magnetic suction seat (32). The feeding mechanism (4) includes a storage tank (41), which is fixedly installed on the periphery of the upper tank body (2). A conical hopper (42) is fixedly installed at the bottom of the storage tank (41). A feeding hole (43) is opened on the bottom wall of the conical hopper (42). A special-shaped feeding pipe (44) is rotatably installed at the bottom of the upper tank body (2). One end of the special-shaped feeding pipe (44) is vertically aligned with the feeding hole (43), and the other end of the special-shaped feeding pipe (44) is located above the first magnetic suction seat (31). A servo motor (46) is fixedly installed on the bottom wall of the upper tank (2). A rotating rod (47) is fixedly installed on the drive output end of the servo motor (46). A transmission gear (48) is fixedly installed on one end of the rotating rod (47) and on the irregular feeding pipe (44). The two transmission gears (48) are meshed and connected.

2. A high-precision magnetic separation device for nickel ore beneficiation according to claim 1, characterized in that, A collection tank (12) is fixedly installed on the bottom wall of the lower tank (1), and a discharge hopper (13) is fixedly installed at the bottom of the collection tank (12).

3. A high-precision magnetic separation device for nickel ore beneficiation according to claim 2, characterized in that, The bottom wall of the collection tank (12) is fixedly provided with a guide plate (14), which is inclined towards the side of the discharge hopper (13).

4. A high-precision magnetic separation device for nickel ore beneficiation according to claim 1, characterized in that, The lower tank (1) is fixedly provided with a lower flange (11) at the open end, and the upper tank (2) is fixedly provided with an upper flange (21) at the bottom. Several assembly bolts (22) are threaded between the upper flange (21) and the lower flange (11).

5. A high-precision magnetic separation device for nickel ore beneficiation according to claim 1, characterized in that, A fixing ring (34) is fixedly provided on the outer wall of the first magnetic base (31), the second magnetic base (32) and the third magnetic base (33), and the outer wall of the fixing ring (34) is provided with an arc-shaped surface.

6. The high-precision magnetic separation equipment for nickel ore beneficiation as described in claim 1, characterized in that, Two mounting plates (37) are detachably installed on the periphery of the lower tank (1), and the first magnetic suction seat (31), the second magnetic suction seat (32), the third magnetic suction seat (33), the first guide bucket (35) and the second guide bucket (36) are fixedly installed between the two mounting plates (37).

7. A high-precision magnetic separation device for nickel ore beneficiation according to claim 6, characterized in that, Several mounting bolts (38) are rotatably threaded on the outer wall of the lower tank (1), and one end of the mounting bolts (38) is rotatably threaded to one end of the mounting plate (37).

8. A high-precision magnetic separation device for nickel ore beneficiation according to claim 1, characterized in that, One end of the special-shaped blanking pipe (44) is fixedly provided with a gasket (45), and the upper surface of the gasket (45) and the bottom of the blanking hole (43) are in movable contact.

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