CN111215239A - Tailing discarding magnetic separator with multilayer magnetic system - Google Patents
Tailing discarding magnetic separator with multilayer magnetic system Download PDFInfo
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- CN111215239A CN111215239A CN201911104702.3A CN201911104702A CN111215239A CN 111215239 A CN111215239 A CN 111215239A CN 201911104702 A CN201911104702 A CN 201911104702A CN 111215239 A CN111215239 A CN 111215239A
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- magnetic
- concentrate
- chamber
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- tailing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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Abstract
The invention relates to a multi-layer magnetic system tailing discarding magnetic separator, which is characterized in that: including selecting separately the chamber, set up the ore feeding pipe on selecting separately chamber upper portion, set up at the tailing pipe of selecting separately the chamber lower part and set up the vertical concentrate case in the outside both sides of selecting separately the chamber, the concentrate pipe sets up the lower extreme at vertical concentrate case, outside both sides in selecting separately the chamber are from the top down in proper order respectively and are equipped with N layer magnetism system in turn, it has the concentrate mouth to open on the lower part selection chamber lateral wall of every layer magnetism system, and along the concentrate baffle that is equipped with the tilt up in the lower edge of selecting separately every concentrate mouth in the chamber, be equipped with the tailing baffle of downward sloping on the selection chamber lateral wall that every layer magnetism system upper portion corresponds, the concentrate mouth all communicate mutually with the vertical concentrate case of outside both sides. The advantages are that: 1) the structure is simple, and the cost is low; 2) no running part is needed, and energy is saved; 3) the ascending water flow is not needed, and the water consumption is low; 4) and selecting for multiple times by one device to obtain qualified tailings.
Description
Technical Field
The invention belongs to the technical field of magnetic separation equipment, and particularly relates to a multi-layer magnetic system tailing discarding magnetic separator which is simple in structure, free of running parts and low in water consumption.
Background
The permanent magnetic drum type magnetic separator and the magnetic separation column are widely applied to magnetite concentrating mills and are main equipment of the magnetic separation plants. However, the running cylinder and the transmission system of the permanent magnet drum magnetic separator have complex structures, which not only increases the manufacturing cost and energy consumption, but also is easy to generate faults, and needs frequent maintenance to influence the production. The magnetic separation column adopts the excitation coil to generate an electromagnetic field with adjustable magnetic field intensity and cycle period from top to bottom in the separation space, so that magnetic particles in the ore pulp generate the phenomena of agglomeration, dispersion, agglomeration and dispersion for many times, and therefore, under the action of ascending water flow, the medium and poor intergrowths and monomer gangue mixed in the magnetic agglomeration can be fully separated, and high-grade concentrate is obtained. However, the apparatus has the disadvantages of relatively complex structure, high cost, high possibility of failure of the electromagnetic conversion and control mechanism, relatively high energy consumption and large water consumption.
The invention patent ZL201410015771.8 discloses a permanent magnetic separation column, which is characterized in that a central shaft is arranged in the magnetic separation column, a plurality of layers of magnetic systems are arranged on the central shaft, a rotary drum driven by a motor is sleeved outside the magnetic systems, a separation cavity is formed between the rotary drum and a cylinder body outside the magnetic separation column, the magnetic fields of the separation cavity are distributed in multiple layers, magnetic minerals are agglomerated, dispersed and agglomerated, and nonmagnetic particles are discharged from the upper part along with ascending water flow. The invention has complex structure, is provided with a running part and a transmission system, and has the same tailing discharging mode as an electromagnetic magnetic field magnetic separation column, and larger ascending water flow is needed to discharge the tailings, so the water consumption is still large.
In addition, in the selection operation, the principle advocates that the semen can be taken early and the tail can be thrown early, otherwise, a series of problems of complicated subsequent process flow and the like can be caused.
Disclosure of Invention
The invention aims to provide a multi-layer magnetic system tailing discarding magnetic separator which is simple in structure, free of running parts and low in water consumption.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a multi-layer magnetic system tailing discarding magnetic separator, which is characterized in that: including selecting separately the chamber, set up the ore feeding pipe on selecting separately chamber upper portion, set up at the tailing pipe of selecting separately the chamber lower part and set up the vertical concentrate case in the outside both sides of selecting separately the chamber, the concentrate pipe sets up the lower extreme at vertical concentrate case, outside both sides in selecting separately the chamber are from the top down in proper order respectively and are equipped with N layer magnetism system in turn, it has the concentrate mouth to open on the lower part selection chamber lateral wall of every layer magnetism system, and along the concentrate baffle that is equipped with the tilt up in the lower edge of selecting separately every concentrate mouth in the chamber, be equipped with the tailing baffle of downward sloping on the selection chamber lateral wall that every layer magnetism system upper portion corresponds, the concentrate mouth all communicate mutually with the vertical concentrate case of outside both sides.
Furthermore, the sorting cavity is an open box body.
Furthermore, the N layers of magnetic systems are permanent magnetic systems, wherein N is more than or equal to 3.
Further, the width of the sorting cavity is 120mm, and the magnetic field intensity of the magnetic system is 1200 Gauss.
Furthermore, the distance between a concentrate hole 9 formed in the side wall of the lower part of the separation cavity of each layer of magnetic system and the lower part of each layer of magnetic system is 50-100 mm.
Furthermore, the inclination angle of the upward inclined concentrate guide plate is 30-60 degrees, and the length of the upward inclined concentrate guide plate is 1/4-1/3 of the width of the separation cavity.
Further, the inclination angle of the downward-inclined tailing guide plate is 30-60 degrees.
Furthermore, control valves are arranged on the ore feeding pipe, the tailing pipe and the concentrate pipe.
Furthermore, a water replenishing pipe and a control valve thereof are also arranged on the separation cavity.
Compared with the prior art, the invention has the advantages that:
1) the structure is very simple, and the manufacturing cost is low;
2) no running part and transmission system, energy saving and consumption reduction;
3) the tailings are discharged without ascending water flow, so that the water consumption is low;
4) and the magnetic particles are sorted for many times on one device to obtain qualified tailings.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the invention relates to a multi-layer magnetic system tailing discarding magnetic separator, which is characterized in that: including selecting separately the chamber 2, set up at the ore feeding pipe 1 on selecting separately 2 upper portions of chamber, set up at the tailing pipe 8 of selecting separately 2 lower parts of chamber and set up at the vertical concentrate case 3 of selecting separately the outside both sides of chamber, concentrate pipe 7 sets up the lower extreme at vertical concentrate case 3, outside both sides in selecting separately chamber 2 are from the top down in proper order respectively and are equipped with N layer magnetism system in turn, it has concentrate mouth 9 to open on the lower part selection chamber lateral wall of every layer magnetism system, and along being equipped with tilt up's concentrate baffle 6 in selecting separately every concentrate mouth 9 in the chamber, be equipped with the tailing baffle 4 of downward sloping on the selection chamber lateral wall that every layer magnetism system upper portion corresponds, concentrate mouth 9 all be linked together with the vertical concentrate case 3 of outside both sides.
The ore feeding pipe 1 is arranged at the upper part of the sorting cavity 2 close to one side of the first layer of magnetic system 51, so that magnetic minerals in the ore pulp fed by the ore feeding pipe 1 are attracted by the first layer of magnetic system 51 as much as possible and are not attracted by the second layer of magnetic system 52.
The width of the sorting cavity is 120mm, and the magnetic field intensity of the magnetic system is 1200 Gauss. The width of the separation cavity 2 is too wide, the action distance of the magnetic system magnetic field is limited, so that the magnetic minerals far away from the magnetic system cannot be effectively separated due to the fact that the magnetic minerals are not affected by the sufficient magnetic field force, the width of the separation cavity 2 is too narrow, the effective volume of the separation cavity is too small, and the separation efficiency is affected.
The magnetic field intensity of magnetic system is too big, attracts the magnetic mineral on magnetic system surface too much, and is difficult for droing, influences the sorting effect, and the magnetic field intensity of magnetic system is undersize, and effective magnetic field intensity's working distance is short excessively, influences the sorting effect equally, and the width of chamber is selected separately to this embodiment is 120mm, and the magnetic field intensity of magnetic system selects to be 1200 Gauss.
The position of a concentrate hole formed in the side wall of the lower part of the separation cavity of each layer of magnetic system is too far away from the lower part of the magnetic system, and after magnetic minerals are separated from the magnetic system, mineral particles can enter the separation cavity again due to the dispersion effect of water;
the distance from the lower part of the magnetic system is too close, and the magnetic agglomeration which does not fall off can block a concentrate opening, so that the fallen magnetic minerals can not enter the concentrate box. The distance in this embodiment is 50 mm.
The inclination angle of the concentrate guide plate which is arranged on the lower edge of each concentrate opening in the separation cavity and inclines upwards is too large, so that the moving speed of the concentrate falling on the surface of the concentrate guide plate is influenced; too small so that its effective area for collecting concentrate is reduced, the inclination angle of the concentrate guide plate of this embodiment to the horizontal plane is 50 degrees and the length is 35 mm.
The inclined angle of the downward-inclined tailing guide plate arranged on the side wall of the separation cavity corresponding to the upper part of each layer of magnetic system is too large, so that the moving speed of concentrate falling on the surface of the tailing guide plate is influenced; the effective area of the tailing guide plate for collecting the concentrate is reduced due to the undersize, the inclination angle of the tailing guide plate and the horizontal plane is 50 degrees, the length of the tailing guide plate is 60mm of the width of the separation cavity, and the lower edge of the tailing guide plate and the upper edge of the corresponding magnetic system are on the same horizontal plane.
This embodiment uses 3 layers of magnetic system.
The ore feeding pipe 1, the tailing pipe 8 and the concentrate pipe 7 are respectively provided with a control valve for controlling the parameters of ore feeding, concentrate and tailing.
In order to ensure that the height of the ore pulp in the separation cavity 2 is higher than that of the first-stage magnetic system 51, the separation cavity is also provided with a water replenishing pipe 10 and a control valve thereof.
The separation cavity, the vertical concentrate box and the concentrate guide plate are all made of non-magnetic materials.
Working process of the invention
As shown in fig. 1 and 2, the working process of the present invention is as follows:
1. preliminary stage
Adding water into the magnetic separator, and keeping the tailing guide plate 4 which is higher than the first layer of magnetic system 51 on the liquid level in the separation cavity 2 by adjusting control valves on the ore feeding pipe 1, the tailing pipe 8 and the concentrate pipe 7;
2. sorting process
In the separation process of the magnetic separator, the magnetic particles are under the action of magnetic force, the weak magnetic particles are under the action of weaker magnetic force, and the non-magnetic particles are not under the action of magnetic force. The sorting process mainly illustrates different motion track conditions of magnetic particles, weak magnetic particles and non-magnetic particles in the magnetic ore pulp in the magnetic separator;
magnetic ore pulp is fed into a separation cavity 2 from an ore feeding pipe 1, and the magnetic ore pulp does not directly sink to the position of the separation cavity 2 where a first layer of magnetic system 51 is located, but moves along a first layer of tailing guide plate 4 in a downward direction obliquely and enters the range of a magnetic field action space of the first layer of magnetic system 51;
magnetic ore particles in the magnetic ore pulp moving obliquely downwards are attracted to the inner surface of the separation cavity groove 2 at the position of the first layer of magnetic system 51 due to the sufficient magnetic attraction of the first layer of magnetic system 51, so that magnetic agglomeration is formed; when the gravity of the attracted magnetic particles is larger than the magnetic force applied to the attracted magnetic particles, the magnetic particles fall off from the first layer of magnetic system 51 and enter the vertical concentrate tank 3 through the concentrate guide plate 6 and the concentrate opening 9 at the lower part of the magnetic particles to become magnetic particle concentrates sorted by the first layer of magnetic system 51;
weak magnetic and non-magnetic particles in the magnetic ore pulp which moves obliquely downwards after being sorted for one time continue to move obliquely downwards to the sorting cavity 2 mainly under the action of gravity, and when the weak magnetic and non-magnetic particles move to a second layer of tailing guide plate 4 on the upper part of a second layer of magnetic system 52 on the opposite side, the weak magnetic and non-magnetic particles move obliquely downwards along the tailing guide plate 4 in a reverse direction and enter the range of the magnetic field action space of the second layer of magnetic system 52, and at the moment, the residual magnetic particles in the magnetic ore pulp which is sorted for one time are attracted by the magnetic force of the second layer of magnetic system 52 to form magnetic agglomeration; when the gravity of the attracted magnetic particles is larger than the magnetic force applied to the attracted magnetic particles, the magnetic particles fall off from the inner surface of the separation cavity groove 2 at the position of the second layer of magnetic system 52 and enter the vertical concentrate box 3 through the concentrate guide plate 6 and the concentrate opening 9 at the lower part of the magnetic particles to become magnetic particle concentrates separated by the second layer of magnetic system 52;
weak magnetic and non-magnetic particles in the magnetic ore pulp subjected to secondary sorting move towards the opposite third layer of tailing guide plate 4, when the weak magnetic and non-magnetic particles move to the third layer of tailing guide plate 4 on the upper part of the opposite third layer of magnetic system 53, the weak magnetic and non-magnetic particles move along the tailing guide plate 4 to the reverse direction and obliquely downwards to enter the range of the magnetic field action space of the third layer of magnetic system 53, and at the moment, the residual magnetic particles in the magnetic ore pulp subjected to secondary sorting are attracted by the magnetic force of the third layer of magnetic system 53 to form magnetic agglomeration; when the gravity of the attracted magnetic particles is larger than the magnetic force applied to the attracted magnetic particles, the magnetic particles fall off from the inner surface of the separation cavity groove 2 at the position of the third layer of magnetic system 53 and enter the vertical concentrate box 3 through the concentrate guide plate 6 and the concentrate opening 9 at the lower part of the vertical concentrate box to become magnetic particle concentrates separated by the third layer of magnetic system 53;
after the separation for three times, the purified weak magnetic and non-magnetic particle tailings are discharged through a tailing pipe 8 at the bottom of the separation cavity 2 to form final tailings; the three layers of magnetic particle concentrate pass through a concentrate pipe 7 at the lower end of the concentrate cavity 3 and are converged to form final concentrate.
Claims (10)
1. The utility model provides a tail magnetic separator is thrown to multilayer magnetic system which characterized in that: including selecting separately the chamber, set up the ore feeding pipe on selecting separately chamber upper portion, set up at the tailing pipe of selecting separately the chamber lower part and set up the vertical concentrate case in the outside both sides of selecting separately the chamber, the concentrate pipe sets up the lower extreme at vertical concentrate case, outside both sides in selecting separately the chamber are from the top down in proper order respectively and are equipped with N layer magnetism system in turn, it has the concentrate mouth to open on the lower part selection chamber lateral wall of every layer magnetism system, and along the concentrate baffle that is equipped with the tilt up in the lower edge of selecting separately every concentrate mouth in the chamber, be equipped with the tailing baffle of downward sloping on the selection chamber lateral wall that every layer magnetism system upper portion corresponds, the concentrate mouth all communicate mutually with the vertical concentrate case of outside both sides.
2. The tailings discarding magnetic separator of the multilayer magnetic system as claimed in claim 1, wherein the separation chamber is an open box.
3. The tailings discarding magnetic separator with multi-layer magnetic system as claimed in claim 1, wherein the N-layer magnetic system is a permanent magnetic system, wherein N is greater than or equal to 3.
4. The tailing discarding magnetic separator with multi-layer magnetic system as claimed in claim 1, wherein the width of the separation chamber is 120mm, and the magnetic field strength of the magnetic system is selected to be 1200 Gauss.
5. The tailings discarding magnetic separator of the multilayer magnetic system as claimed in claim 1, wherein the distance between the concentrate hole opened on the sidewall of the lower separation chamber of each layer of magnetic system and the lower part of each layer of magnetic system is 50-100 mm.
6. The tailings discarding magnetic separator with multi-layer magnetic system as claimed in claim 1, wherein the inclined angle of the upward inclined concentrate guide plate is 30 ° -60 °, and the length is 1/4-1/3 of the width of the separation chamber.
7. The magnetic concentration separator with multilayer magnetic series and multi-row separation cavities according to claim 1, characterized in that the inclination angle of the downward inclined tailing guide plate is 30-60 degrees.
8. The magnetic tailing discarding separator with multi-layer magnetic system as claimed in claim 1, wherein the ore feeding pipe, the tailing pipe and the concentrate pipe are all provided with control valves.
9. The tailing discarding magnetic separator with multilayer magnetic system as claimed in claim 1, wherein the separation chamber is further provided with a water replenishing pipe and a control valve thereof.
10. The tailings discarding magnetic separator of the multilayer magnetic system as claimed in claim 1, wherein the separation chamber, the vertical concentrate box and the concentrate guide plate are made of non-magnetic conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911104702.3A CN111215239A (en) | 2019-11-13 | 2019-11-13 | Tailing discarding magnetic separator with multilayer magnetic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911104702.3A CN111215239A (en) | 2019-11-13 | 2019-11-13 | Tailing discarding magnetic separator with multilayer magnetic system |
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| CN111215239A true CN111215239A (en) | 2020-06-02 |
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| CN201911104702.3A Pending CN111215239A (en) | 2019-11-13 | 2019-11-13 | Tailing discarding magnetic separator with multilayer magnetic system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808455A (en) * | 2021-01-27 | 2021-05-18 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with movable shielding plate |
| CN112808454A (en) * | 2021-01-27 | 2021-05-18 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with moving magnetic poles |
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| CN201205516Y (en) * | 2008-02-04 | 2009-03-11 | 上海中路实业有限公司 | Multi-level magnetic separator |
| KR20100034871A (en) * | 2008-09-25 | 2010-04-02 | 형성산업(주) | Magnetic separator |
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| CN112808455B (en) * | 2021-01-27 | 2022-12-13 | 鞍钢集团矿业设计研究院有限公司 | Permanent magnetic separator with movable shielding plate |
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