CN112439546A - Air film type cylinder magnetic separator - Google Patents
Air film type cylinder magnetic separator Download PDFInfo
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- CN112439546A CN112439546A CN202011560700.8A CN202011560700A CN112439546A CN 112439546 A CN112439546 A CN 112439546A CN 202011560700 A CN202011560700 A CN 202011560700A CN 112439546 A CN112439546 A CN 112439546A
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- concentrate
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- air film
- pipe
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- 239000006148 magnetic separator Substances 0.000 title claims abstract description 23
- 239000012141 concentrate Substances 0.000 claims abstract description 65
- 238000000926 separation method Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 238000007885 magnetic separation Methods 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Classifications
-
- 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
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/24—Details of magnetic or electrostatic separation for measuring or calculating of parameters, e.g. efficiency
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to an air film type drum magnetic separator which comprises an ore feeding box, a separation groove, a permanent magnet separation drum and a rotating shaft thereof, a driving motor, a concentrate box and a concentrate box ore discharge pipe thereof, a tailing box and a control box, and is characterized in that field intensity adjusting mechanisms are arranged on the permanent magnet separation drum and the rotating shaft thereof, and concentrate grade detecting mechanisms are arranged on the concentrate box and the concentrate ore discharge pipe thereof; the field intensity adjusting mechanism comprises a rotating shaft, an air source, an air inlet pipe, an air outlet pipe and an air film; the concentrate grade detection mechanism comprises a stirrer, a replenishing water pipe, a concentration meter, a sampler and an automatic level meter. The invention has the advantages that: the field intensity of the drum magnetic separator can be increased or decreased according to the fluctuation of the grade of the concentrate product, and the aim of controlling the grade of the concentrate product of the drum magnetic separator to be stabilized between 65% and 69% is further achieved.
Description
Technical Field
The invention belongs to the technical field of magnetic separation in a concentrating mill, and particularly relates to a gas film type drum magnetic separator.
Background
At present, most iron ore species have magnetism to a certain degree, so magnetic separation is the most main ore separation method for iron ores, wherein strong magnetic minerals such as magnetite and titanomagnetite are separated by a multi-purpose cylinder magnetic separator, and weak magnetic minerals such as hematite, limonite, specularite and the like are separated by a multi-purpose vertical ring strong magnetic separator and a flat ring strong magnetic separator.
Magnetite is the most widely used iron ore with large reserves at present, and is separated and recycled by a cylinder magnetic separator with small magnetic field intensity due to strong magnetism.
In the case of iron mines, because the ore properties of the iron mines fluctuate widely, and the service life of a general mine is short, and more than 20 years, four or fifty years, the fluctuations in the grade of magnetite processed in the service life are large, and the fluctuations in the grade, yield, and the like of iron concentrate products are also large. The current magnetic mining drum magnetic separator adopts a permanent magnetic system, the field intensity is fixed field intensity which can not be adjusted, so that when the feeding of the magnetic mining drum magnetic separator fluctuates, the product fluctuation is large, ideal product indexes can not be obtained, and the benefit of a plant is reduced.
Disclosure of Invention
The invention aims to provide the air film type drum magnetic separator which can adapt to the fluctuation of ore feeding grade, can effectively adjust the field intensity of the drum magnetic separator and can automatically and accurately adjust and control product indexes.
The purpose of the invention is realized by the following technical scheme:
the invention relates to an air film type drum magnetic separator, which comprises an ore feeding box, a separation groove, a permanent magnet separation drum, a rotating shaft of the permanent magnet separation drum, a driving motor, a concentrate box ore discharging pipe of the concentrate box, a tailing box and a control box, wherein the concentrate box is communicated with a concentrate discharging port at the ore discharging end of the separation groove;
the field intensity adjusting mechanism comprises an air source, an air inlet pipe, an air outlet pipe and an air film; the air film is a cylindrical air film, the centers of two end faces of the cylindrical air film are provided with hollow end pipes, the cylindrical air film is sleeved and covered on the surface and the end face of the permanent magnet separation cylinder in a clearance way, the front end of each hollow end pipe is fixedly connected with a shell of a sealed rotating bearing ring fixed on the rotating shaft, a closed space is formed between the cylindrical air film and the permanent magnet separation cylinder,
a horizontally-penetrating hollow hole is formed in the radial center of the rotating shaft, an air inlet pipe is arranged in the hollow hole, one end of the air inlet pipe is sleeved and inserted into the hollow hole, the other end of the air inlet pipe is communicated with an air source, an air exhaust pipe is arranged on the air inlet pipe, an electric regulating valve I and an electric regulating valve II are respectively arranged on the air inlet pipe and the air exhaust pipe, and the electric regulating valve I and the electric regulating valve II are electrically connected with a control box;
and one side of the rotating shaft, which is close to the permanent magnet separation barrel, is provided with an air outlet, one end of the air outlet is communicated with the air inlet pipe, and the other end of the air outlet is communicated with a hollow end pipe of the cylindrical air film for inflating the air film.
The concentrate grade detection mechanism comprises a concentrate box, a concentrate box ore discharge pipe, a stirrer, a replenishing water pipe, a concentration meter, a sampler and an automatic level meter, wherein the concentrate box ore discharge pipe is arranged in the concentrate box; the automatic level meter is connected with the sampler through a sample tube of the sampler, the replenishing water tube is provided with an electric regulating valve III, and the two stirrers are uniformly distributed in the concentrate box along the length direction of the concentrate box; the stirrer, the automatic level meter, the concentration meter and the electric regulating valve III are electrically connected with the control box.
Furthermore, the cylindrical air film is made of flexible rubber, and the thickness of the cylindrical air film is 5-15 mm.
Furthermore, two hollow end pipes at two ends of the cylindrical air film are respectively provided with a disc-shaped clamping plate with the diameter 1.1-1.2 times that of the permanent magnet separation cylinder, and the distance between the disc-shaped clamping plate and the end surface of the cylindrical air film is 50-100 mm.
Furthermore, the electric regulating valve I of the air inlet pipe and the electric regulating valve II of the air discharging pipe are interlocked, equal-step inflation or deflation is adopted, the step interval is 30-60 seconds for each inflation or deflation, and the interval time is 5-10 minutes.
The invention has the advantages that:
the invention adopts the air film to cover the outer ring of the permanent magnet separation barrel, increases the distance between the surface of the air film and the surface of the permanent magnet separation barrel by inflating the air film, and takes the surface of the air film as a new separation surface of the permanent magnet separation barrel. The method utilizes the principle that the magnetic field intensity is gradually reduced along with the increase of the distance on the surface of the permanent magnet separation cylinder, and adjusts the field intensity on the surface of the air film by controlling the distance between the air film and the surface of the permanent magnet separation cylinder, thereby realizing the controllability of the field intensity of the separation interface and obtaining different iron ore concentrate indexes by utilizing different field intensities.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view from a-a of fig. 1.
Fig. 3 is a view from the direction B-B of fig. 1.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to fig. 3, the air film type drum magnetic separator of the present invention comprises an ore feeding box 1, a separation tank 2, a permanent magnetic separation drum 3 and a rotation shaft 9 thereof, a driving motor 10, a concentrate box 4 and a concentrate box ore discharge pipe 25 thereof, a tailing box 5 and a control box of the drum magnetic separator, wherein the concentrate box 4 is communicated with a concentrate discharge port at an ore discharge end of the separation tank 2, and the tailing box 5 is communicated with a tailing discharge port at the bottom of the separation tank 2, and is characterized in that field intensity adjusting mechanisms are arranged on the permanent magnetic separation drum 3 and the rotation shaft 9 thereof, and concentrate grade detecting mechanisms are arranged on the concentrate box 4 and the concentrate ore discharge pipe 25 thereof;
the field intensity adjusting mechanism comprises an air source 12, an air inlet pipe 6, an air outlet pipe 7 and an air film; the air film is a cylindrical air film 8, a hollow end pipe 15 is arranged in the center of two end faces of the cylindrical air film 8, the cylindrical air film 8 is in clearance sleeve joint and covers the surface of the permanent magnet separation barrel 3 and the end face of the permanent magnet separation barrel, the front end of the hollow end pipe 15 is fixedly connected with a shell of a sealed rotating bearing ring 16 fixed on the rotating shaft 9, a closed space is formed between the cylindrical air film 8 and the permanent magnet separation barrel 3, and the cylindrical air film 8 is made of flexible rubber and is 5-15 mm thick.
A horizontally-penetrating hollow hole 11 is formed in the radial center of the rotating shaft 9, an air inlet pipe 6 is arranged in the hollow hole 11, one end of the air inlet pipe 6 is inserted into the hollow hole 11 in a sleeved mode, the other end of the air inlet pipe is communicated with an air source 12, an air discharging pipe 7 is arranged on the air inlet pipe 6, an electric regulating valve I13 and an electric regulating valve II 14 are respectively arranged on the air inlet pipe 6 and the air discharging pipe 7, and the electric regulating valve I13 and the electric regulating valve II 14 are electrically connected with a control box;
and an air outlet hole 18 is formed in one side, close to the permanent magnet separation barrel 3, of the rotating shaft 9, one end of the air outlet hole 18 is communicated with the air inlet pipe 6, and the other end of the air outlet hole is communicated with a hollow end pipe 15 of the cylindrical air film 8 and used for inflating the air film.
The concentrate grade detection mechanism comprises a concentrate box 4, a concentrate box ore discharge pipe 25 of the concentrate box 4, a stirrer 19 arranged in the concentrate box 4, a replenishing water pipe 20 arranged on the concentrate box 4, a concentration meter 24 arranged on the concentrate box ore discharge pipe 25, a sampler 21 and an automatic level meter 22; the automatic level meter 22 is connected with the sampler 21 through a sample tube of the sampler, the replenishing water pipe 20 is provided with an electric regulating valve III 23, and the two stirrers 19 are uniformly distributed in the concentrate box 4 along the length direction; the stirrer 19, the automatic level meter 22, the concentration meter 24 and the electric regulating valve III 23 are electrically connected with the control box. According to the invention, the stirrer 19 is arranged in the concentrate tank 4, and a detection signal of the concentration meter 24 is automatically interlocked with the electric regulating valve III 23 of the replenishing water pipe 20. The detection signal of the automatic level meter 22 is automatically interlocked with the electric control valve I13 on the air inlet pipe 6 and the electric control valve II 14 on the air discharge pipe 7, so that the homogeneous distribution of materials in the concentrate box 4 is realized, and the accuracy of concentrate grade determination is ensured.
The sampler 21 is arranged in front of the automatic level meter 22, so that the feeding representativeness of the automatic level meter 22 is ensured, and the accuracy of grade measurement is ensured.
The electric control valve I13 of the air inlet pipe 6 and the electric control valve II 14 of the air discharge pipe 7 are interlocked, and the air is inflated or discharged in equal steps, wherein the step interval is 30-60 seconds for each inflation or deflation, and the interval time is 5-10 minutes. The distance between the cylindrical air film 8 and the surface of the permanent magnet separation cylinder 3 is controlled in an equal step mode, so that the grade detection has certain buffering time under certain covering ring surface field intensity, the detection result of the automatic level meter 22 is the detection result when iron ore concentrate under specific field intensity flows to the automatic level meter 22, and the validity of the detection result is ensured.
According to the invention, the electric control valve I13 and the electric control valve II 14 on the air inlet pipe 6 and the air outlet pipe 7 are interlocked with the automatic level meter 22, so that the accurate regulation and control of the product grade between 65% and 69% are realized. The influence of low grade on sale and selling price when the grade of the product is lower than 65 percent is avoided; and when the product grade is higher than 69%, the silicon content in the product is too low, so that the fluidity of the blast furnace ironmaking slag is reduced, and the adverse effects on the selling price and the sale route of the product are avoided.
In addition, the two hollow end pipes 15 at the two ends of the cylindrical air film 8 are respectively provided with a disc-shaped clamping plate 17 with the diameter 1.1-1.2 times of that of the permanent magnet separation cylinder 3, and the distance between the disc-shaped clamping plate 17 and the end surface of the cylindrical air film 8 is 50-100 mm.
The two ends of the cylindrical air film 8 are provided with the disc-shaped clamping plates 17 with the diameter 1.1-1.2 times that of the permanent magnet separation cylinder 3, the arrangement of the disc-shaped clamping plates 17 limits the ineffective extension of the cylindrical air film 8 at the two sides, prevents the cylindrical air film 8 from shaking, ensures the structural stability of the cylindrical air film 8, and creates conditions for good separation.
According to the invention, the automatic level meter 22 is provided with high-grade and low-grade alarms, when the detection grade of the automatic level meter 22 is higher than 69%, the electric regulating valve II 14 of the gas release pipe 7 is automatically opened in an interlocking manner, the inflation quantity in the cylindrical gas film 8 is reduced, the distance between the cylindrical gas film 8 and the surface of the permanent magnet separation barrel 3 is reduced, the field intensity on the surface of the cylindrical gas film 8 is increased, the concentrate thickness adsorbed on the surface of the cylindrical gas film 8 is increased, the concentrate quantity is increased, the concentrate grade is reduced, the concentrate recovery rate is increased until the alarm is relieved, and the electric regulating valve II 14 of the gas release pipe 7 is automatically closed. When the detection grade of the automatic level gauge 22 is lower than 65%, the electric control valve I13 on the air inlet pipe 6 is opened to start air inlet in an automatic interlocking mode, the distance between the cylindrical air film 8 and the surface of the permanent magnet separation barrel 3 is increased, the field intensity of the surface of the air film 8 is reduced, the concentrate thickness adsorbed on the surface of the air film 8 is reduced, the concentrate amount is reduced, the concentrate grade is improved, the concentrate recovery rate is reduced, and the electric control valve I13 of the air inlet pipe 6 is automatically closed until the alarm is relieved.
The concentration meter 24 on the ore discharging pipe 25 of the concentrate box is also provided with high concentration and low concentration alarms. When the detection concentration of the concentration meter 24 is lower than 45%, the electric control valve III 23 on the automatic interlocking replenishing water pipe 20 reduces the valve opening, so that the concentration of the concentrate is increased until the alarm is relieved. When the detection concentration of the concentration meter 24 is higher than 60%, the electric control valve III 23 on the automatic interlocking replenishing water pipe 20 increases the valve opening, so that the concentration of the concentrate is reduced until the alarm is relieved.
The driving motors of the concentration meter and all valves and the detection signals of the automatic level meter 22 are all connected with the control box and automatically operated. The mode can not only realize real-time detection and control, but also does not need manual operation, thereby saving the labor cost.
Claims (4)
1. A kind of air film type cylinder magnetic separator, including feed box, separation trough, permanent magnet separation cylinder and its axis of rotation, driving motor, concentrate box and its concentrate box ore discharge tube, tailings box and control box of the cylinder magnetic separator, the said concentrate box communicates with concentrate discharge port of the ore discharge end of separation trough, the said tailings box communicates with tailings discharge port of the bottom of separation trough, characterized by that, there are field intensity regulating mechanisms on said permanent magnet separation cylinder and its axis of rotation, there are concentrate grade detection mechanisms on said concentrate box and its concentrate discharge tube;
the field intensity adjusting mechanism comprises an air source, an air inlet pipe, an air outlet pipe and an air film; the air film is a cylindrical air film, the centers of two end faces of the cylindrical air film are provided with hollow end pipes, the cylindrical air film is sleeved and covered on the surface and the end face of the permanent magnet separation cylinder in a clearance way, the front end of each hollow end pipe is fixedly connected with a shell of a sealed rotating bearing ring fixed on the rotating shaft, a closed space is formed between the cylindrical air film and the permanent magnet separation cylinder,
a horizontally-through hollow hole is formed in the radial center of the rotating shaft, an air inlet pipe is arranged in the hollow hole, one end of the air inlet pipe is sleeved and inserted into the hollow hole, the other end of the air inlet pipe is communicated with an air source, an air exhaust pipe is arranged on the air inlet pipe, an electric control valve I and an electric control valve II are respectively arranged on the air inlet pipe and the air exhaust pipe, the electric control valve I and the electric control valve II are electrically connected with a control box,
an air outlet hole is formed in one side, close to the permanent magnet separation barrel, of the rotating shaft, one end of the air outlet hole is communicated with the air inlet pipe, and the other end of the air outlet hole is communicated with a hollow end pipe of the cylindrical air film and used for inflating the air film;
the concentrate grade detection mechanism comprises a concentrate box, a concentrate box ore discharge pipe, a stirrer, a replenishing water pipe, a concentration meter, a sampler and an automatic level meter, wherein the concentrate box ore discharge pipe is arranged in the concentrate box; the automatic level meter is connected with the sampler through a sample tube of the sampler, the replenishing water tube is provided with an electric control valve III, the number of the stirrers is two, the stirrers are uniformly distributed in the concentrate box along the length direction of the concentrate box, and the stirrers, the automatic level meter, the concentration meter and the electric control valve III are electrically connected with the control box.
2. The air film type drum magnetic separator as claimed in claim 1, wherein the cylindrical air film is made of flexible rubber and has a thickness of 5mm to 15 mm.
3. The air film type drum magnetic separator as claimed in claim 1, wherein the two hollow end tubes at both ends of the cylindrical air film are respectively provided with a disc-shaped clamping plate with a diameter 1.1-1.2 times of the diameter of the permanent magnetic separator, and the distance between the disc-shaped clamping plate and the end face of the cylindrical air film is 50-100 mm.
4. The air film type drum magnetic separator as claimed in claim 1, wherein the electric control valve I of the air inlet pipe and the electric control valve II of the air discharge pipe are interlocked, and the air is inflated or discharged in equal steps, wherein the step interval is 30-60 seconds per time of inflation or deflation, and the interval time is 5-10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011560700.8A CN112439546A (en) | 2020-12-25 | 2020-12-25 | Air film type cylinder magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011560700.8A CN112439546A (en) | 2020-12-25 | 2020-12-25 | Air film type cylinder magnetic separator |
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| Publication Number | Publication Date |
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| CN112439546A true CN112439546A (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011560700.8A Pending CN112439546A (en) | 2020-12-25 | 2020-12-25 | Air film type cylinder magnetic separator |
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Citations (12)
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|---|---|---|---|---|
| CN2176837Y (en) * | 1994-02-25 | 1994-09-14 | 北京矿冶研究总院 | Permanent-magnet drum type magnetic separator |
| CN2227983Y (en) * | 1994-11-09 | 1996-05-29 | 冶金工业部马鞍山矿山研究院 | Permanent-magnet multi-gradient field strength adjustable magnetic separator |
| US5651541A (en) * | 1995-07-05 | 1997-07-29 | Atlas Technologies, Inc. | Magnetic sheet separator construction |
| CN2323874Y (en) * | 1998-03-31 | 1999-06-16 | 攀钢集团矿业公司 | Magnetic separator |
| CN2407383Y (en) * | 2000-02-02 | 2000-11-22 | 罗放明 | Apparatus for regulating mineral slurry concentration and flow, and equally distributing |
| CN101368917A (en) * | 2008-10-16 | 2009-02-18 | 丹东东方测控技术有限公司 | Automatic ore slurry grade control instrument |
| CN201244511Y (en) * | 2008-03-31 | 2009-05-27 | 孙建喜 | Vibrating cobber with controllable field intensity |
| US20130240413A1 (en) * | 2012-03-19 | 2013-09-19 | Mid-American Gunite, Inc. | Adjustable magnetic separator |
| CN203297501U (en) * | 2013-05-13 | 2013-11-20 | 宁波南方减震器制造有限公司 | Double-tube high-voltage magneto-rheological shock absorber |
| CN205323975U (en) * | 2016-01-05 | 2016-06-22 | 苏卫放 | Permanent magnet high -gradient magnetic separator |
| CN106345609A (en) * | 2016-09-20 | 2017-01-25 | 荆门市格林美新材料有限公司 | Apparatus for removing magnetic foreign matters |
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-
2020
- 2020-12-25 CN CN202011560700.8A patent/CN112439546A/en active Pending
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|---|---|---|---|---|
| CN2176837Y (en) * | 1994-02-25 | 1994-09-14 | 北京矿冶研究总院 | Permanent-magnet drum type magnetic separator |
| CN2227983Y (en) * | 1994-11-09 | 1996-05-29 | 冶金工业部马鞍山矿山研究院 | Permanent-magnet multi-gradient field strength adjustable magnetic separator |
| US5651541A (en) * | 1995-07-05 | 1997-07-29 | Atlas Technologies, Inc. | Magnetic sheet separator construction |
| CN2323874Y (en) * | 1998-03-31 | 1999-06-16 | 攀钢集团矿业公司 | Magnetic separator |
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| CN214262316U (en) * | 2020-12-25 | 2021-09-24 | 中冶北方（大连）工程技术有限公司 | Air film type cylinder magnetic separator |
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| Title |
|---|
| 玉溪大红山矿业有限公司: "大红山铁矿开发的综合研究和实践", 31 July 2017, 北京：冶金工业出版社, pages: 724 - 727 * |
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