CN107597422B - Fine particle dry separator for weakening magnetic effect loss - Google Patents
Fine particle dry separator for weakening magnetic effect loss Download PDFInfo
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- CN107597422B CN107597422B CN201710568565.3A CN201710568565A CN107597422B CN 107597422 B CN107597422 B CN 107597422B CN 201710568565 A CN201710568565 A CN 201710568565A CN 107597422 B CN107597422 B CN 107597422B
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Abstract
A fine particle dry separation machine capable of weakening magnetic effect loss comprises a lower box body, a rack, an upper box body, a permanent magnet cylinder, a speed reducer, a motor, an ore unloading adjusting device, a gear, a base body, an adjusting plate support and the like, wherein the lower box body is fixed on the rack through a bolt, a shaft seat of the permanent magnet cylinder is arranged on the rack and connected through a bolt, the permanent magnet cylinder is arranged in the upper box body and the lower box body, the joint of the upper box body and the lower box body is sealed through soft rubber and connected through a bolt, the contact surface of the permanent magnet cylinder, the upper box body and the lower box body is sealed through a sealing material, one end of the ore unloading adjusting device is inserted into the base body in the lower box body, the other end of the ore unloading adjusting device is arranged outside the lower box body and connected with an adjusting handle. The magnetic ore dressing machine has the advantages of simple structure, convenience in maintenance and repair, energy conservation, prolonged service life of equipment, reduction of power loss caused by magnetic effect, and application in the technical field of magnetic ore dressing machinery.
Description
Technical Field
The invention relates to a fine particle dry separator for weakening magnetic effect loss in the technical field of magnetic mineral separation machinery, which is particularly suitable for separating or separating fine particle magnetic substances with high cylinder rotating speed.
Background
At present, along with the continuous development of mineral resources, high-grade mineral resources are gradually exhausted, and the development and utilization of resources are gradually shifted to low-grade lean ores. Due to the restriction of the technical level and the disadvantage of iron ore resource conditions, the cost for developing and utilizing the lean iron ore resource is relatively high. The 'more crushing, less grinding and advanced tailing discarding' become effective ways for reducing cost and improving efficiency of a newly-built plant. Along with the continuous enrichment of crushing means and the increasingly fine crushing granularity, the application of the fine particle dry separator is popularized. Due to the wide application of the fine particle dry separator, the amount of minerals entering the mill is greatly reduced, energy is saved, and the separation time is shortened.
However, the cylinder of the fine particle dry separator is mostly made of thin stainless steel plates, and the cylinder cuts magnetic lines of force while running at high speed, which is equivalent to that a conductor cuts a magnetic field to generate current, so that the cylinder generates double eddy current and other magnetic effect losses, and the direct consequence is that the cylinder skin rapidly generates heat, the magnetic loss power is increased, the magnetic performance attenuation of a magnetic system is accelerated, and therefore waste disposal with higher efficiency cannot be achieved. As the decay period of the magnetic property of the magnetic system is shortened, the equipment needs to be frequently replaced, the normal production work is influenced, and the economic loss is caused. Therefore, the development of a fine particle dry separator for weakening the loss of the magnetic effect is a new problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a fine grain dry separator capable of weakening magnetic effect loss, which effectively shields part of magnetic force lines, cuts off eddy current generated by a cylinder, prevents the cylinder from being heated too fast and too high due to the magnetic effect, reduces power loss caused by the magnetic effect, prolongs the service life of a magnetic system, has a simple structure, is convenient to maintain and overhaul, saves energy, prolongs the service life of equipment, and has a good separation effect.
The purpose of the invention is realized as follows: a fine grain dry separation machine capable of weakening magnetic effect loss comprises a lower box body, a rack, an upper box body, a permanent magnetic cylinder, a first safety cover, a speed reducer, a second safety cover, a motor, an ore unloading adjusting device, a gear, a coupler, a soft rubber seal, a sealing material seal, a seat body, an adjusting handle and an adjusting plate support, wherein the lower box body is fixed on the rack through bolts, a shaft seat of the permanent magnetic cylinder is arranged on the rack and connected through bolts, the permanent magnetic cylinder is arranged in the upper box body and the lower box body, the joint of the upper box body and the lower box body is sealed through the soft rubber and connected through the bolts, the contact surface of the permanent magnetic cylinder, the upper box body and the lower box body is sealed through the sealing material, one end of the ore unloading adjusting device is inserted into the seat body in the lower box body, the other end of the ore unloading adjusting device is arranged outside the lower box body and connected with, the speed reducer is connected with the motor through a coupler, a first safety cover is arranged on a gear between the permanent magnet cylinder and the speed reducer, and a second safety cover is arranged on the coupler between the speed reducer and the motor;
the permanent magnetic cylinder consists of a cylinder body, a shielding device, a magnetic system, an end cover and a shaft, wherein the shielding device is welded with the inner wall of the cylinder body into a whole;
the magnetic pole group has small pole width, the magnetic pole groups are alternately and densely arranged according to N, S poles in the circumferential direction, and the wrap angle of a magnetic system is 140-210 degrees;
the fine particle dry separator for weakening magnetic effect loss has the working principle that a magnetic system is fixed, a shielding device rotates along with a cylinder, when the shielding device rotates to a magnetic system area, partial magnetic force lines penetrate through the shielding device, the magnetic system area on the surface of the cylinder is divided by the shielding device to form a plurality of small magnetic system areas, and power loss generated by the magnetic effect is reduced; the shielding device is welded with the inner wall of the cylinder into a whole, rotates along with the cylinder when the fine particle dry separator works, is welded with the cylinder skin in the cylinder into a whole, and operates along with the cylinder when the equipment works, and when the shielding device operates to a magnetic system region, the shielding device can shield part of magnetic lines of force, so that the effects of dividing the magnetic system and destroying magnetic agglomeration are achieved, the power loss generated by eddy current is weakened, the use power of the equipment is reduced, and the ore dressing grade is improved; when the working condition of the fine particle dry separator requires to improve the capacity or the grade, the rotating speed of a cylinder of the fine particle dry separator needs to be increased, and the motor power increase value of the fine particle dry separator with the shielding device is only 35-50% of that of the traditional dry separator; the energy consumption is low, the waste throwing effect is good, the yield and the concentrate grade can be improved, and the economic benefit is very obvious.
The key point of the invention lies in its structure and working principle.
Compared with the prior art, the fine grain dry separator capable of weakening magnetic effect loss has the advantages of simple structure, convenience in maintenance and overhaul, energy conservation, prolonged service life of equipment, good separation effect, low energy consumption, good waste throwing effect, improvement of yield and concentrate grade, remarkable economic benefit, reduction of power loss caused by magnetic effect, prolonged service life of a magnetic system and the like, and can be widely applied to the technical field of magnetic separation machinery.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged sectional view a-a of fig. 1.
Detailed Description
Referring to the attached drawings, a fine grain dry separation machine for weakening magnetic effect loss comprises a lower box body 1, a frame 2, an upper box body 3, a permanent magnet cylinder 4, a first safety cover 5, a speed reducer 6, a second safety cover 7, a motor 8, an ore unloading adjusting device 9, a gear 10, a coupler 11, a soft rubber seal 12, a sealing material seal 13, a seat body 14, an adjusting handle 15 and an adjusting plate support 16, wherein the lower box body 1 is fixed on the frame 2 through bolts, a shaft seat of the permanent magnet cylinder 4 is arranged on the frame 2 and connected through bolts, the permanent magnet cylinder 4 is arranged in the upper box body 3 and the lower box body 1, the joint of the upper box body 3 and the lower box body 1 is connected through the soft rubber seal 12 and the bolts, the contact surface of the permanent magnet cylinder 4 and the upper box body 3 and the lower box body 1 adopts the sealing material seal 13, one end of the ore unloading adjusting device 9 is inserted into the inner part 14 of the lower box body 1, the other end of the ore unloading, and is fixed on an adjusting plate support 16, the permanent magnet cylinder 4 is connected with a speed reducer 6 through a gear 10, the speed reducer 6 is connected with a motor 8 through a coupling 11, a first safety cover 5 is arranged on the gear 10 between the permanent magnet cylinder 4 and the speed reducer 6, and a second safety cover 7 is arranged on the coupling 11 between the speed reducer 6 and the motor 8.
The permanent magnetic cylinder 4 consists of a cylinder body 4-1, a shielding device 4-2, a magnetic system 4-3, an end cover 4-4 and a shaft 4-5, wherein the shielding device 4-2 and the inner wall of the cylinder body 4-1 are welded into a whole, the magnetic system 4-3 is fixed on the shaft 4-5, the magnetic system 4-3 penetrates through the cylinder body 4-1, and two ends of the cylinder body 4-1 are connected with the end cover 4-4 through bolts.
The magnetic pole group has small pole width, the magnetic pole groups are alternately and densely arranged according to N, S poles in the circumferential direction, and the wrap angle of 4-3 magnetic systems is 140-210 degrees.
The fine particle dry separator for weakening magnetic effect loss has the working principle that a magnetic system 4-3 is fixed, a shielding device 4-2 rotates along with a cylinder 4-1, when the shielding device 4-2 rotates to a magnetic system 4-3 area, partial magnetic force lines penetrate through the shielding device 4-2, the magnetic system 4-3 area on the surface of the cylinder 4-1 is divided by the shielding device 4-2 to form a plurality of small magnetic system areas, and power loss caused by the magnetic effect is reduced; the shielding device 4-2 is welded with the inner wall of the cylinder 4-1 into a whole, the shielding device 4-2 rotates along with the cylinder 4-1 when the fine particle dry separator works, the shielding device 4-2 is welded with the cylinder skin in the cylinder 4-1 into a whole, the equipment works along with the cylinder 4-1, and when the shielding device 4-2 operates to the magnetic system 4-3 area, the shielding device 4-2 can shield part of magnetic lines of force, so that the effects of segmenting the magnetic system 4-3 and destroying magnetic agglomeration are achieved, the power loss generated by eddy current is weakened, the use power of the equipment is reduced, and the ore dressing grade is improved; when the working condition of the fine particle dry separator requires to improve the capacity or the grade, the rotating speed of a cylinder 4-1 of the fine particle dry separator needs to be increased, and the power increase value of a motor 8 of the fine particle dry separator which is additionally provided with a shielding device 4-2 is only 35-50% of that of the traditional dry separator; the energy consumption is low, the waste throwing effect is good, the yield and the concentrate grade can be improved, and the economic benefit is very obvious.
Claims (2)
1. The utility model provides a weaken fine grain dry separation machine of magnetic effect loss, includes box, frame down, goes up box, permanent magnetism drum, first safety guard, reduction gear, second safety guard, motor, ore unloading adjusting device, gear, shaft coupling, soft rubber seal, sealing material are sealed, pedestal, adjustment handle, regulating plate support, its characterized in that: the lower box body is fixed on the rack through bolts, a shaft seat of the permanent magnetic cylinder is arranged on the rack and connected through bolts, the permanent magnetic cylinder is arranged in the upper box body and the lower box body, the joint of the upper box body and the lower box body is sealed by soft rubber and connected through bolts, the contact surface of the permanent magnetic cylinder with the upper box body and the lower box body is sealed by sealing materials, one end of an ore unloading adjusting device is inserted into a seat body in the lower box body, the other end of the ore unloading adjusting device is arranged outside the lower box body and connected with an adjusting handle and fixed on an adjusting plate support, the permanent magnetic cylinder is connected with a speed reducer through a gear, the speed reducer is connected with a motor through a coupling, a first safety cover is arranged on the gear between the permanent magnetic cylinder and the speed reducer, and a second safety cover; the permanent magnetic cylinder consists of a cylinder body, a shielding device, a magnetic system, an end cover and a shaft, wherein the shielding device is welded with the inner wall of the cylinder body into a whole; the magnetic pole group has small pole width, the magnetic pole groups are alternately and densely arranged according to N, S poles in the circumferential direction, and the wrap angle of a magnetic system is 140-210 degrees.
2. A dry fine particle separator with reduced magnetic effect losses as claimed in claim 1, wherein: the fine particle dry separator for weakening magnetic effect loss has the working principle that a magnetic system is fixed, a shielding device rotates along with a cylinder, when the shielding device rotates to a magnetic system area, partial magnetic force lines penetrate through the shielding device, the magnetic system area on the surface of the cylinder is divided by the shielding device to form a plurality of small magnetic system areas, and power loss generated by the magnetic effect is reduced; the shielding device is welded with the inner wall of the cylinder into a whole, rotates along with the cylinder when the fine particle dry separator works, is welded with the cylinder skin in the cylinder into a whole, and operates along with the cylinder when the equipment works, and when the shielding device operates to a magnetic system region, the shielding device can shield part of magnetic lines of force, so that the effects of segmenting the magnetic system and destroying magnetic agglomeration are achieved, and the power loss generated by eddy current is weakened.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568565.3A CN107597422B (en) | 2017-07-13 | 2017-07-13 | Fine particle dry separator for weakening magnetic effect loss |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710568565.3A CN107597422B (en) | 2017-07-13 | 2017-07-13 | Fine particle dry separator for weakening magnetic effect loss |
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| CN107597422A CN107597422A (en) | 2018-01-19 |
| CN107597422B true CN107597422B (en) | 2020-03-10 |
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| CN201710568565.3A Active CN107597422B (en) | 2017-07-13 | 2017-07-13 | Fine particle dry separator for weakening magnetic effect loss |
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| CN109365125B (en) * | 2018-12-13 | 2021-01-08 | 绵阳西磁科技有限公司 | Drum magnetic separator capable of adjusting magnetic wrap angle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5670855A (en) * | 1979-11-16 | 1981-06-13 | Kanetsuu Kogyo Kk | Separation apparatus of mixed material |
| JPH08131731A (en) * | 1994-11-16 | 1996-05-28 | Hitachi Ltd | Magnetic separating device |
| JP2011212601A (en) * | 2010-03-31 | 2011-10-27 | Okano Kiko Kk | Magnetic particle removing apparatus and cleaning system for fluid to be treated |
| CN102266820A (en) * | 2011-07-25 | 2011-12-07 | 江苏旌凯中科超导高技术有限公司 | Superconducting magnetic separation continuous separation unit with magnetic field shielding case |
| CN104511370A (en) * | 2013-09-28 | 2015-04-15 | 辽宁五寰工程技术有限公司 | Eddy current loss-free magnetic separator |
| CN206139335U (en) * | 2016-08-28 | 2017-05-03 | 湖南科源磁力装备有限公司 | Magnetic system of external magnetic type magnetic separator |
-
2017
- 2017-07-13 CN CN201710568565.3A patent/CN107597422B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5670855A (en) * | 1979-11-16 | 1981-06-13 | Kanetsuu Kogyo Kk | Separation apparatus of mixed material |
| JPH08131731A (en) * | 1994-11-16 | 1996-05-28 | Hitachi Ltd | Magnetic separating device |
| JP2011212601A (en) * | 2010-03-31 | 2011-10-27 | Okano Kiko Kk | Magnetic particle removing apparatus and cleaning system for fluid to be treated |
| CN102266820A (en) * | 2011-07-25 | 2011-12-07 | 江苏旌凯中科超导高技术有限公司 | Superconducting magnetic separation continuous separation unit with magnetic field shielding case |
| CN104511370A (en) * | 2013-09-28 | 2015-04-15 | 辽宁五寰工程技术有限公司 | Eddy current loss-free magnetic separator |
| CN206139335U (en) * | 2016-08-28 | 2017-05-03 | 湖南科源磁力装备有限公司 | Magnetic system of external magnetic type magnetic separator |
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