US3062376A - Magnetic separator - Google Patents
Magnetic separator Download PDFInfo
- Publication number
- US3062376A US3062376A US795778A US79577859A US3062376A US 3062376 A US3062376 A US 3062376A US 795778 A US795778 A US 795778A US 79577859 A US79577859 A US 79577859A US 3062376 A US3062376 A US 3062376A
- Authority
- US
- United States
- Prior art keywords
- ring
- magnetic
- members
- rings
- framework
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000006148 magnetic separator Substances 0.000 title description 5
- 125000006850 spacer group Chemical group 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 125000001424 substituent group Chemical group 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
- B03C1/28—Magnetic plugs and dipsticks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/06—Filters making use of electricity or magnetism
-
- 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
Definitions
- This invention relates to magnetic separators for removing magnetic particles from a fluid in which the particles are entrained and concerns a filter element for such a separator.
- a filter element comprises a circular framework of substantially non-magnetic material, the said framework including an outer ring defining the periphery of the framework, an inner ring and a plurality of radial members secured to the said rings, together with a plurality of part-annular magnetic members each magnetic member being arranged to fit within the framework in a space bounded by a portion of the inner ring a portion of the outer ring and two of the radial members.
- the framework is provided with a central ring which is positioned concentrically within the inner ring and is secured to the inner ring by further radial members.
- a magnetic separator according to the invention comprises a plurality of filter elements as defined above, together with a plurality of steel spacer rings located one between each adjacent pair of elements.
- FIGURE 1 shows a plan view of a framework for a filter element
- FIGURE 2 shows a cross-section of two filter elements partly assembled in position
- FIGURE 3 is a view similar to FIGURE 2, showing a second embodiment.
- a framework 1 for a filter element comprises an outer ring portion 2, inner portion 3 and a central rin portion 4: these ring portions are joined by outer radial members 5 and inner radial members 6 which are secured to the rings.
- This frame work is of a substantially non-ferrous material and may suitably be formed of brass in which case the rings and radial members may conveniently be secured by soldering.
- the framework may be of non-magnetic stainless steel in which case it may be found more convenient to weld the rings and radial members to each other.
- the framework may alternatively be formed of a diecast metal, for instance zinc alloy, or it may be formed of synthetic resin: as however the outer surfaces of the elements are cleaned in use by scraper blades it is preferable to use a metal for the framework as this will be more abrasionresisting than are most synthetic resins.
- FIG- URES 1 and 2 Within the framework are positioned six part-annular magnet members 8 of which one only is shown in FIG- URES 1 and 2. These members 8 are of a material having a high coercive force and are magnetized in a direction parallel to the axis of the assembly filter, that is to say in a vertical direction as viewed in FIGURE 2.
- a magnetic material which has been found particularly suitable is that ice known under the registered trade mark Magnadur, this material being a composition consisting substantially of non-cubic crystals principally of a composite oxide of iron and at least one of the metals barium, strontium and lead and, alternatively, of a small amount of calcium as a partial substituent. This material is set forth in US. Patents Nos. 2,762,777 and 2,767,778.
- each filter element In use a number of filter elements, each with its associated magnetic members 8, are assembled, in the manner illustrated in FIGURE 2, on a central rod or spindle not shown. Between each adjacent pair of elements is provided a steel spacer ring 9, the rings 9 being located in position by lugs 7 secured to the framework 1.
- FIGURE 3 is shown a modified arrangement wherein the lugs 7 shown in FIGURES l and 2 are dispensed with.
- annular members 10 of non-magnetic material are provided between adjacent filter elements and the steel spacer rings 9 are positioned around the annular members 10.
- the central ring 4 is in this embodiment of greater axial length than the rings 2 and 3 so that portions 14 of the ring 4 act as locating means for the annular members 10. It is not necessary however for the central ring 4 to be extended in this manner and if preferred the annular members 10 may be dimensioned so that their inner circumference lies flush with the inner circumferences of the rings 4 thus providing within the assembled separator a bore having a flush surface through which the central fixing bolt extends.
- a filter for a magnetic separator comprising a number of substantially circular frames superposed and spaced from one another, said frames being constituted substantially of non-magnetic material and including an outer ring and an inner ring, a plurality of radial element interconnecting said outer and inner rings at spaced intervals to form a multiplicity of enclosures which together constitute a ring-shaped structure, a plurality of magnetic members each corresponding to the shape of a corresponding enclosure and inserted therein, each magnetic member having curved surfaces co-extensive with and adjacent to both said inner and outer rings, a plurality of spacer rings located between superposed frames, a plurality of lugs secured to said frames for locating said spacer rings, said lugs being disposed on each of said frames in a circle concentric with and disposed radially inward from said outer ring.
- a filter for a magnetic separator comprising a number of substantially circular frames superposed in spaced relationship and each being constituted substantially of non-magnetic material, each of said frames including an outer ring, an inner ring and a central ring, said central ring having portions thereon forming locating means, a plurality of radial elements interconnecting said outer and inner rings at spaced intervals to form a multiplicity of enclosures which together constitute a ring-shaped structure, a plurality of magnetic members each corresponding to the shape of a corresponding enclosure and inserted therein, each magnetic member having curved surfaces coextensive with and adjacent to both said inner and outer rings, a plurality of non-magnetic annular members posi- 5 tioned between said superposed frames and having their inner surfaces abutting against said locating means, a plurality of steel spacer rings positioned between superposed frames and located on the outside of said annular members and having the inner surfaces thereof abutting the outer 10 surfaces of said annular members.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Centrifugal Separators (AREA)
- Cell Separators (AREA)
Description
1962 c. w. v. DAVIS 3,062,376
MAGNETIC SEPARA'IOR Filed Feb. 26, 1959 I m r l L I/I/IIIIIIII INVENTOR CHARLES W.V. DAVIS a, g E.
AG EN hired States This invention relates to magnetic separators for removing magnetic particles from a fluid in which the particles are entrained and concerns a filter element for such a separator.
A filter element according to the invention comprises a circular framework of substantially non-magnetic material, the said framework including an outer ring defining the periphery of the framework, an inner ring and a plurality of radial members secured to the said rings, together with a plurality of part-annular magnetic members each magnetic member being arranged to fit within the framework in a space bounded by a portion of the inner ring a portion of the outer ring and two of the radial members. Preferably, the framework is provided with a central ring which is positioned concentrically within the inner ring and is secured to the inner ring by further radial members.
A magnetic separator according to the invention comprises a plurality of filter elements as defined above, together with a plurality of steel spacer rings located one between each adjacent pair of elements.
In order that the invention may be readily understood embodiments thereof will now be described by way or" example with reference to the accompanying diagrammatic drawings wherein:
FIGURE 1 shows a plan view of a framework for a filter element,
FIGURE 2 shows a cross-section of two filter elements partly assembled in position,
FIGURE 3 is a view similar to FIGURE 2, showing a second embodiment.
Referring now to FIGURES 1 and 2 a framework 1 for a filter element comprises an outer ring portion 2, inner portion 3 and a central rin portion 4: these ring portions are joined by outer radial members 5 and inner radial members 6 which are secured to the rings. This frame work is of a substantially non-ferrous material and may suitably be formed of brass in which case the rings and radial members may conveniently be secured by soldering. Alternatively, the framework may be of non-magnetic stainless steel in which case it may be found more convenient to weld the rings and radial members to each other. The framework may alternatively be formed of a diecast metal, for instance zinc alloy, or it may be formed of synthetic resin: as however the outer surfaces of the elements are cleaned in use by scraper blades it is preferable to use a metal for the framework as this will be more abrasionresisting than are most synthetic resins.
Within the framework are positioned six part-annular magnet members 8 of which one only is shown in FIG- URES 1 and 2. These members 8 are of a material having a high coercive force and are magnetized in a direction parallel to the axis of the assembly filter, that is to say in a vertical direction as viewed in FIGURE 2. A magnetic material which has been found particularly suitable is that ice known under the registered trade mark Magnadur, this material being a composition consisting substantially of non-cubic crystals principally of a composite oxide of iron and at least one of the metals barium, strontium and lead and, alternatively, of a small amount of calcium as a partial substituent. This material is set forth in US. Patents Nos. 2,762,777 and 2,767,778.
In use a number of filter elements, each with its associated magnetic members 8, are assembled, in the manner illustrated in FIGURE 2, on a central rod or spindle not shown. Between each adjacent pair of elements is provided a steel spacer ring 9, the rings 9 being located in position by lugs 7 secured to the framework 1.
In FIGURE 3 is shown a modified arrangement wherein the lugs 7 shown in FIGURES l and 2 are dispensed with. In this embodiment annular members 10 of non-magnetic material are provided between adjacent filter elements and the steel spacer rings 9 are positioned around the annular members 10. The central ring 4 is in this embodiment of greater axial length than the rings 2 and 3 so that portions 14 of the ring 4 act as locating means for the annular members 10. It is not necessary however for the central ring 4 to be extended in this manner and if preferred the annular members 10 may be dimensioned so that their inner circumference lies flush with the inner circumferences of the rings 4 thus providing within the assembled separator a bore having a flush surface through which the central fixing bolt extends.
It will be observed that the spaces between the inner ring 3 and the central ring 4 in the embodiments shown are left empty so that a certain saving of weight could be achieved by dispensing with the ring 3 and the inner radial members 6. However, this inner ring provides a convenient means for centralizing each element upon a central shaft and so enables the assembly of elements readily to be aligned.
What is claimed is:
1. A filter for a magnetic separator comprising a number of substantially circular frames superposed and spaced from one another, said frames being constituted substantially of non-magnetic material and including an outer ring and an inner ring, a plurality of radial element interconnecting said outer and inner rings at spaced intervals to form a multiplicity of enclosures which together constitute a ring-shaped structure, a plurality of magnetic members each corresponding to the shape of a corresponding enclosure and inserted therein, each magnetic member having curved surfaces co-extensive with and adjacent to both said inner and outer rings, a plurality of spacer rings located between superposed frames, a plurality of lugs secured to said frames for locating said spacer rings, said lugs being disposed on each of said frames in a circle concentric with and disposed radially inward from said outer ring.
2. A filter for a magnetic separator comprising a number of substantially circular frames superposed in spaced relationship and each being constituted substantially of non-magnetic material, each of said frames including an outer ring, an inner ring and a central ring, said central ring having portions thereon forming locating means, a plurality of radial elements interconnecting said outer and inner rings at spaced intervals to form a multiplicity of enclosures which together constitute a ring-shaped structure, a plurality of magnetic members each corresponding to the shape of a corresponding enclosure and inserted therein, each magnetic member having curved surfaces coextensive with and adjacent to both said inner and outer rings, a plurality of non-magnetic annular members posi- 5 tioned between said superposed frames and having their inner surfaces abutting against said locating means, a plurality of steel spacer rings positioned between superposed frames and located on the outside of said annular members and having the inner surfaces thereof abutting the outer 10 surfaces of said annular members.
References Cited in the file of this patent UNITED STATES PATENTS Frantz May 23,
Anderson Sept. 7,
FOREIGN PATENTS Germany Oct. 20,
Great Britain Jan. 9,
Great Britain Sept. 3,
France Mar. 29,
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12389/58A GB840102A (en) | 1958-04-18 | 1958-04-18 | Improvements in magnetic separators |
Publications (1)
Publication Number | Publication Date |
---|---|
US3062376A true US3062376A (en) | 1962-11-06 |
Family
ID=10003670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US795778A Expired - Lifetime US3062376A (en) | 1958-04-18 | 1959-02-26 | Magnetic separator |
Country Status (3)
Country | Link |
---|---|
US (1) | US3062376A (en) |
CH (1) | CH375465A (en) |
GB (1) | GB840102A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345594A (en) * | 1967-10-03 | Magnetic device for treating a liquid | ||
US3355024A (en) * | 1964-02-03 | 1967-11-28 | Philips Corp | Magnetic filter |
US3376529A (en) * | 1965-06-02 | 1968-04-02 | Miyata Saburo | Magnet assembly for filtering |
US3959145A (en) * | 1973-03-26 | 1976-05-25 | Allmanna Svenska Elektriska Aktiebolaget | Magnetic separator with scraper means |
US3980562A (en) * | 1974-04-22 | 1976-09-14 | Allmanna Svenska Elektriska Aktiebolaget | Magnetic disk separator with scraper means |
US8292084B2 (en) | 2009-10-28 | 2012-10-23 | Magnetation, Inc. | Magnetic separator |
US8708152B2 (en) | 2011-04-20 | 2014-04-29 | Magnetation, Inc. | Iron ore separation device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3389794A (en) * | 1965-04-12 | 1968-06-25 | Miyata Saburo | Magnetic separator |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE726783C (en) * | 1937-02-21 | 1942-10-20 | Hugo Laderer | Edge filter |
US2508666A (en) * | 1939-12-12 | 1950-05-23 | Samuel G Frantz | Magnetic separator |
FR1059902A (en) * | 1951-04-03 | 1954-03-29 | Faudi Feinbau | Magnetic filter |
US2688403A (en) * | 1951-01-08 | 1954-09-07 | Sundstrand Magnetic Products C | Magnetic separator |
GB765495A (en) * | 1954-11-08 | 1957-01-09 | Philips Electrical Ind Ltd | Improvements in or relating to magnetic separators |
GB801003A (en) * | 1955-06-24 | 1958-09-03 | Adolf Neidig | Filter arrangements |
-
1958
- 1958-04-18 GB GB12389/58A patent/GB840102A/en not_active Expired
-
1959
- 1959-02-26 US US795778A patent/US3062376A/en not_active Expired - Lifetime
- 1959-04-15 CH CH7208459A patent/CH375465A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE726783C (en) * | 1937-02-21 | 1942-10-20 | Hugo Laderer | Edge filter |
US2508666A (en) * | 1939-12-12 | 1950-05-23 | Samuel G Frantz | Magnetic separator |
US2688403A (en) * | 1951-01-08 | 1954-09-07 | Sundstrand Magnetic Products C | Magnetic separator |
FR1059902A (en) * | 1951-04-03 | 1954-03-29 | Faudi Feinbau | Magnetic filter |
GB765495A (en) * | 1954-11-08 | 1957-01-09 | Philips Electrical Ind Ltd | Improvements in or relating to magnetic separators |
GB801003A (en) * | 1955-06-24 | 1958-09-03 | Adolf Neidig | Filter arrangements |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345594A (en) * | 1967-10-03 | Magnetic device for treating a liquid | ||
US3355024A (en) * | 1964-02-03 | 1967-11-28 | Philips Corp | Magnetic filter |
US3376529A (en) * | 1965-06-02 | 1968-04-02 | Miyata Saburo | Magnet assembly for filtering |
US3959145A (en) * | 1973-03-26 | 1976-05-25 | Allmanna Svenska Elektriska Aktiebolaget | Magnetic separator with scraper means |
US3980562A (en) * | 1974-04-22 | 1976-09-14 | Allmanna Svenska Elektriska Aktiebolaget | Magnetic disk separator with scraper means |
US8292084B2 (en) | 2009-10-28 | 2012-10-23 | Magnetation, Inc. | Magnetic separator |
US8777015B2 (en) | 2009-10-28 | 2014-07-15 | Magnetation, Inc. | Magnetic separator |
US8708152B2 (en) | 2011-04-20 | 2014-04-29 | Magnetation, Inc. | Iron ore separation device |
Also Published As
Publication number | Publication date |
---|---|
CH375465A (en) | 1964-02-29 |
GB840102A (en) | 1960-07-06 |
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