CN210632279U - Inner-barrel type multifunctional magnetic separator suitable for preselection before oxide ore grinding - Google Patents

Inner-barrel type multifunctional magnetic separator suitable for preselection before oxide ore grinding Download PDF

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Publication number
CN210632279U
CN210632279U CN201920982819.0U CN201920982819U CN210632279U CN 210632279 U CN210632279 U CN 210632279U CN 201920982819 U CN201920982819 U CN 201920982819U CN 210632279 U CN210632279 U CN 210632279U
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ore
concentrate
roller
magnetic system
cylinder
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吕小焕
常龙新
张海梁
张春舫
杨楠
张成龙
王浩明
李金朋
马金生
吕海波
李双
武志亮
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Hebei Iron and Steel Group Mining Co Ltd
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Hebei Iron and Steel Group Mining Co Ltd
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Abstract

The utility model discloses a multi-functional magnet separator of inner tube formula suitable for preselection before oxidation ore grinding, it is including cylinder, drum sieve, concentrate fill and the water pipe that unloads that has drive arrangement, the ore feed end of cylinder is equipped with the feeding chute and installs on the bearing frame through rolling bearing, and the lateral part is equipped with the magnetism system, and the ore removal end passes through the bearing roller and installs on the bearing roller support, the drum sieve docks with the cylinder rear end, and the lower part of drum sieve is equipped with tailing collection ore groove, and the rear end below is equipped with concentrate collection ore groove, concentrate fill and the water pipe that unloads stretch into inside and with the cylinder phase separation of cylinder, the water pipe that unloads is located concentrate fill top, and the bin outlet of concentrate fill is relative with concentrate collection ore groove. The utility model discloses having add the drum sieve at the ore removal end of cylinder, having made the magnet separator both have the magnetic separation function, can retrieve the higher ore of grade in the tailing again. The magnetic separator can effectively separate the iron ores without being provided with an independent screening system, thereby reducing the equipment investment and energy consumption and reducing the ore dressing cost.

Description

Inner-barrel type multifunctional magnetic separator suitable for preselection before oxide ore grinding
Technical Field
The utility model relates to an interior cylinder magnet separator that is applicable to preselection before the oxide ore mill, has screening recovery function belongs to magnetic separation technical field.
Background
In the process of sorting the iron ores, ore grinding is a link which has the highest energy consumption and occupies the largest production cost, so that the grade of the ground raw ore is improved, the processing capacity of a mill per machine hour is increased, and the method is one of the main ways for reducing the production cost. At present, a wet-type preselection magnetic separator before grinding is widely applied, the sorting effect is ideal, the grinding grade and the treatment capacity of a grinder are obviously improved, but when an ordinary cylindrical magnetic separator is used for sorting oxidized ores, the grade of the coarse grain diameter (+ 6 mm) in tailings is high, the tailings are not suitable for direct tailing discarding, an additional screening system is required to be added for screening the tailings, then the coarse grain grade ores with high grade on the screen are recovered, and the fine grain grade materials under the screen enter the tailings system. However, the addition of a screening system will increase equipment investment and energy consumption, so that the production cost is greatly increased, and the increase of equipment requires a large site and a large height difference, and is difficult to realize in the existing plant selection with compact arrangement. In addition, the existing drum-type magnetic separator generally adopts a built-in magnetic system, the sorting area is small, the sorting belt is short, the processing capacity is poor, and the drum-type magnetic separator is difficult to realize super-large scale because the spindle load of the drum is increased because the magnetic system with large mass is built in the drum.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's drawback, provide one kind and be applicable to the preliminary election before the oxidized ore grinds, have the multi-functional magnet separator of interior cylinder of screening function, when satisfying iron ore sorting requirement, reduce equipment input, reduction in production cost.
The problem of the utility model is realized with following technical scheme:
the utility model provides a multi-functional magnet separator of inner tube formula suitable for preselection before oxidation ore grinding, including cylinder, drum sieve, concentrate fill and the water pipe that unloads that has drive arrangement in the constitution, the ore feed end of cylinder is equipped with the feeding chute and installs on the bearing frame through rolling bearing, and the lateral part is equipped with the magnetic system, and the ore removal end is installed on the bearing roller support through the bearing roller, drum sieve and cylinder rear end butt joint, the lower part of drum sieve are equipped with tailing collection ore groove, and the rear end below is equipped with concentrate collection ore groove, concentrate fill and unload the water pipe stretch into inside and with the cylinder phase separation of cylinder, unload the water pipe and be located concentrate fill top, the bin outlet and the concentrate collection ore groove of concentrate fill are relative.
The internal-cylinder type multifunctional magnetic separator suitable for pre-selection before oxide ore grinding is characterized in that the magnetic system comprises a roughing magnetic system and a scavenging magnetic system, the roughing magnetic system and the scavenging magnetic system are fixed below the outer side of the roller, the roughing magnetic system is located at the ore inlet end of the roller, the scavenging magnetic system is located behind the roughing magnetic system, and the magnetic field intensity of the scavenging magnetic system is higher than that of the roughing magnetic system.
The inner-cylinder type multifunctional magnetic separator suitable for pre-selection before the oxide ore grinding is characterized in that the driving device of the roller comprises a motor, a speed reducer, a gear ring and a gear, the gear ring is coaxially sleeved on the roller, the motor and the speed reducer are fixed on a support on one side of the roller, an input shaft of the speed reducer is connected with an output shaft of the motor, and the gear is fixed on an output shaft of the speed reducer and meshed with the gear ring.
The inner-cylinder type multifunctional magnetic separator suitable for preselection before an oxidized ore mill is characterized in that a box-type shield is arranged outside the roller, the bearing block, the carrier roller support, the ore feeding chute, the concentrate hopper, the concentrate collecting groove, the ore discharging water pipe, the tailing collecting groove and the magnetic system are all fixed on a cross beam of the box-type shield, an ore feeding port corresponding to the ore feeding chute and a washing water port corresponding to the ore discharging water pipe are reserved at the front end of the box-type shield, and a concentrate port corresponding to the concentrate collecting groove and a tailing port corresponding to the tailing collecting groove are reserved at the bottom of the rear end of the box-type shield.
The inner-cylinder type multifunctional magnetic separator suitable for pre-selection before the oxide ore grinding is characterized in that the inner wall of the cylindrical sieve is provided with the flow guide spiral sheet, and the outer wall of the cylindrical sieve is provided with the sieve plate reinforcing rib.
The inner cylinder type multifunctional magnetic separator suitable for pre-selection before the oxide ore grinding is characterized in that the middle of the cylinder and the rear end of the cylinder screen are both provided with cylinder reinforcing ribs.
The inner cylinder type multifunctional magnetic separator suitable for preselection before oxide ore grinding is characterized in that the roller is connected with the cylinder screen through the flange plate.
The utility model discloses having add the drum sieve at the ore removal end of cylinder, having made the magnet separator both have the magnetic separation function, can retrieve the higher ore of grade in the tailing again. The magnetic separator can effectively separate iron ores without being provided with an independent screening system, so that equipment investment and energy consumption are reduced, equipment floor area is saved, and ore dressing cost is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
FIG. 4 is a cross-sectional view B-B of FIG. 1;
the figures are labeled as follows: 1. the device comprises a roller, 2, a rotating shaft, 3, a rotating bearing, 4, a bearing seat, 5, a motor, 6, a speed reducer, 7, a support, 8, a gear ring, 9, a gear, 10, a carrier roller, 11, a carrier roller support, 12, a cylindrical screen, 13, a roller reinforcing rib, 14, a flange plate, 15, a sieve plate reinforcing rib, 16, a guide spiral plate, 17, an ore feeding chute, 18, a concentrate hopper, 19, a concentrate ore collecting groove, 20, an ore discharging water pipe, 21, a tailing ore collecting groove, 22, a roughing magnetic system, 23, a scavenging magnetic system, 24, a magnetic flange, 25, a magnetic system support, 26 and a box-type shield.
Detailed Description
The utility model provides an inner tube formula magnet separator with screening recovery function, be applicable to the preselection before the oxide ore ground, the selection of this kind of magnet separator is not the area big, and single unit throughput is big, and has the screening function, and the higher coarse fraction ore of grade in both recoverable tailings improves the rate of recovery, reduces the current transformation degree of difficulty that increases wet-type preselection system before grinding of selecting the factory, reduces the energy consumption because of having cancelled solitary screening process again to the ore dressing cost has been reduced.
Referring to fig. 1-4, the utility model discloses mainly include cylinder 1, rolling bearing 3, bearing frame 4, motor 5, speed reducer 6, support 7, ring gear 8, gear 9, bearing roller 10, bearing roller support 11, drum sieve 12, cylinder strengthening rib 13, ring flange 14, sieve strengthening rib 15, water conservancy diversion spiral piece 16, feeding chute 17, concentrate fill 18, concentrate collection groove 19, unloading water pipe 20, tailing collection groove 21, rougher magnetic system 22, scavenging magnetic system 23 and box guard shield 26.
The utility model discloses a structure is very different with current magnet separator, and one section drum sieve 12 has been installed additional to 1 rear end of cylinder, is connected through ring flange 14 between cylinder 1 and the drum sieve 12. The front end (ore inlet end) and the rear end (ore outlet end) of the roller 1 are respectively supported by a rotating bearing 3 and a carrier roller 10, the rotating bearing 3 and the carrier roller 10 are respectively arranged on a bearing seat 4 and a carrier roller bracket 11, roller reinforcing ribs 13 are respectively arranged in the middle of the roller 1 and at the rear end of a cylindrical screen 12, the size of the screen holes of the cylindrical screen 12 can be adjusted according to the test result, a screen plate reinforcing rib 15 is arranged on the outer side of the cylindrical screen 12, and a flow guide spiral sheet 16 is arranged on the inner side of the cylindrical screen.
The circumference of the front end of the roller 1 is sleeved with a gear ring 8, the gear ring 8 is meshed with a gear 9, the gear 9 is connected with a speed reducer 6 and a motor 5, an ore feeding chute 17 and an ore discharging water pipe 20 extend into the roller body of the roller 1 from the front end of the roller 1, a concentrate hopper 18 is arranged below the ore discharging water pipe 20, the discharge end of the concentrate hopper 18 extends out from the rear end of the cylindrical screen 12, the ore feeding chute 17, the ore discharging water pipe 20 and the concentrate hopper 18 are supported on a cross beam of a box-type shield 26, a tailing collecting groove 21 is arranged below the cylindrical screen 12, a concentrate collecting groove 19 is arranged at the lower part of the rear end, and the two collecting grooves are also arranged on the cross beam of the box-type shield 26. The length of the ore discharge water pipe 20 is matched with that of the magnetic system, and the width of the tailing collecting groove 21 is the same as that of the sieve plate.
The utility model discloses locate the cylinder 1 outside with magnetism system, and will unload ore deposit water pipe 20 and concentrate fill 18 and arrange in cylinder 1. The magnetic system comprises a roughing magnetic system 22 and a scavenging magnetic system 23 which are independent from each other, the roughing magnetic system 22 and the scavenging magnetic system 23 are positioned below the outer side of the roller 1 and are fixed on a cross beam at the bottom of a box-type shield 26 through magnetic system supports 25, the roughing magnetic system 22 and the scavenging magnetic system 23 are arranged along the length direction of the roller 1, the roughing magnetic system 22 is positioned at the ore inlet end of the roller 1, and the magnetic field intensity of the scavenging magnetic system 23 is higher than that of the roughing magnetic system 22 after the scavenging magnetic system 23 is positioned behind the roughing magnetic system.
The utility model discloses except motor 5, reduction gear 6 and support 7, all components are enclosed by box guard shield 26, and components such as bearing frame 4, bearing roller support 11, feeding chute 17, concentrate fill 18, concentrate collection ore groove 19, unloading water pipe 20, tailing collection ore groove 21, magnetism system support 25 are all installed on the crossbeam of box guard shield 26, and box guard shield 26 front end leaves the sparge water interface, leaves concentrate mouth and tailing mouth for ore mouth, rear end bottom.
The working process is as follows: after the motor 5 is electrified, the speed reducer 6 rotates along with the rotation, the speed reducer 6 drives the roller 1 and the cylindrical screen 12 to rotate through the gear 9 and the gear ring 8, mineral aggregate is fed into the roller 1 through the ore feeding chute 17, iron ore particles with magnetism are adsorbed on the inner wall of the roller 1 under the action of the roughing magnetic system 22 along with the rotation of the roller 1, when the roller rotates to a position above the magnetic system, magnetite is flushed into the concentrate hopper 18 by water under the action of ore unloading water sprayed from the ore unloading water pipe 20 due to the disappearance of magnetic force, tailings after roughing automatically flow to a position opposite to the scavenging magnetic system 23, weak magnetic minerals in the roughing tailings are separated by the scavenging magnetic system 23 and enter the concentrate hopper 18 through the ore unloading water, the roughing concentrates and the scavenging concentrates enter the concentrate collecting groove 19 through the concentrate hopper 18, and tailings without magnetism automatically flow to the cylindrical screen 12, the ore is screened under the flow guiding action of the flow guiding spiral piece 16, the coarse fraction ore with higher grade on the screen flows into the concentrate ore collecting groove 19 and is mixed with the concentrate in the concentrate hopper 18, the ore is discharged from the concentrate port to the box type protective cover 26, the fine fraction ore pulp under the screen enters the tailing ore collecting groove 21 and is discharged from the tailing port to the box type protective cover 26 and enters the tailing system.
The utility model discloses a magnetism is placed at the cylinder outside, and the active area and the intensity of magnetism system can increase, can also solve the support problem of magnetism system, very is favorable to improving the concentrate rate of recovery and controls the tailing grade, avoids magnetism system quality to the influence of main shaft load, consequently can realize the super maximization of drum-type magnet separator, promotes the single platform throughput to the ore greatly, satisfies the needs of large-scale production. Install the drum sieve additional behind the cylinder, can sieve the tailing, retrieve high-grade coarse fraction tailing, improve the rate of recovery, because of cancelled solitary screening process, both solved the problem of configuration difficulty when wet-type preliminary election before the oxide ore mill, can reduce the energy consumption again, and then reduced the ore dressing cost, the utility model discloses an oxide ore wet-type preliminary election provides brand-new thinking, is worth popularizing and applying.

Claims (7)

1. An inner cylinder type multifunctional magnetic separator suitable for preselection before oxide ore grinding is characterized by comprising a roller (1) with a driving device, a cylindrical screen (12), a concentrate hopper (18) and an ore discharge water pipe (20), the ore feeding end of the roller (1) is provided with an ore feeding chute (17) and is arranged on a bearing seat (4) through a rotating bearing (3), the lateral part is provided with a magnetic system, the ore discharging end is arranged on a carrier roller bracket (11) through a carrier roller (10), the cylindrical screen (12) is butted with the rear end of the roller (1), a tailing ore collecting groove (21) is arranged at the lower part of the cylindrical screen (12), a concentrate ore collecting groove (19) is arranged below the rear end, concentrate fill (18) and unloading water pipe (20) stretch into inside and with cylinder (1) looks separation, and unloading water pipe (20) are located concentrate fill (18) top, and the bin outlet of concentrate fill (18) is relative with concentrate collection groove (19).
2. The multi-functional internal cylinder magnetic separator suitable for pre-selection before oxide ore grinding of claim 1, wherein the magnetic system comprises a roughing magnetic system (22) and a scavenging magnetic system (23), the roughing magnetic system (22) and the scavenging magnetic system (23) are fixed below the outer side of the drum (1), the roughing magnetic system (22) is located at the ore feeding end of the drum (1), the scavenging magnetic system (23) is located behind the roughing magnetic system (22), and the magnetic field intensity of the scavenging magnetic system (23) is higher than that of the roughing magnetic system (22).
3. The inner-cylinder type multifunctional magnetic separator suitable for preselection before oxide ore grinding as claimed in claim 1 or 2, wherein the driving device of the roller (1) comprises a motor (5), a speed reducer (6), a gear ring (8) and a gear (9), the gear ring (8) is coaxially sleeved on the roller (1), the motor (5) and the speed reducer (6) are fixed on a support (7) on one side of the roller (1), an input shaft of the speed reducer (6) is connected with an output shaft of the motor (5), and the gear (9) is fixed on an output shaft of the speed reducer (6) and is meshed with the gear ring (8).
4. The inner cylinder type multifunctional magnetic separator suitable for preselection before oxide ore grinding is characterized in that a box type shield (26) is arranged outside the drum (1), the bearing seats (4), the carrier roller support (11), the ore feeding chute (17), the concentrate hopper (18), the concentrate ore collecting groove (19), the ore discharging water pipe (20), the tailing ore collecting groove (21) and the magnetic system are all fixed on a cross beam of the box type shield (26), an ore feeding port corresponding to the ore feeding chute (17) and a washing water port corresponding to the ore discharging water pipe (20) are reserved at the front end of the box type shield (26), and a concentrate port corresponding to the concentrate ore collecting groove (19) and a tailing port corresponding to the tailing ore collecting groove (21) are reserved at the bottom of the rear end.
5. The multi-functional magnetic separator of inner cylinder type suitable for preselection before the oxide ore mill of claim 4, characterized in that the inner wall of the cylindrical screen (12) is provided with guide spiral sheets (16), and the outer wall is provided with screen plate reinforcing ribs (15).
6. The inner-cylinder multifunctional magnetic separator suitable for pre-selection before oxide ore grinding according to claim 5 is characterized in that the middle part of the roller (1) and the rear end of the cylindrical screen (12) are provided with roller reinforcing ribs (13).
7. The multi-functional magnetic separator with inner drum type suitable for pre-selection before oxidized ore grinding in claim 6 is characterized in that the drum (1) is connected with the cylindrical screen (12) through a flange plate (14).
CN201920982819.0U 2019-06-27 2019-06-27 Inner-barrel type multifunctional magnetic separator suitable for preselection before oxide ore grinding Active CN210632279U (en)

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Application Number Priority Date Filing Date Title
CN201920982819.0U CN210632279U (en) 2019-06-27 2019-06-27 Inner-barrel type multifunctional magnetic separator suitable for preselection before oxide ore grinding

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110339942A (en) * 2019-06-27 2019-10-18 河北钢铁集团矿业有限公司 A kind of multi-functional magnetic separator of inner tube type suitable for oxide ore pre-selecting before grinding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110339942A (en) * 2019-06-27 2019-10-18 河北钢铁集团矿业有限公司 A kind of multi-functional magnetic separator of inner tube type suitable for oxide ore pre-selecting before grinding

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