EP0100556B1 - Magnetscheider - Google Patents

Magnetscheider Download PDF

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Publication number
EP0100556B1
EP0100556B1 EP19830107649 EP83107649A EP0100556B1 EP 0100556 B1 EP0100556 B1 EP 0100556B1 EP 19830107649 EP19830107649 EP 19830107649 EP 83107649 A EP83107649 A EP 83107649A EP 0100556 B1 EP0100556 B1 EP 0100556B1
Authority
EP
European Patent Office
Prior art keywords
magnetic
magnetic separator
rollers
separator according
plates
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
Application number
EP19830107649
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0100556A3 (en
EP0100556A2 (de
Inventor
Ernest Mendrela
Wieslaw Muszczak
Tadeusz Lisowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Politechnika Swietokrzyska
Original Assignee
Politechnika Swietokrzyska
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from PL23777682A external-priority patent/PL134911B1/pl
Priority claimed from PL24206183A external-priority patent/PL137774B3/pl
Application filed by Politechnika Swietokrzyska filed Critical Politechnika Swietokrzyska
Publication of EP0100556A2 publication Critical patent/EP0100556A2/de
Publication of EP0100556A3 publication Critical patent/EP0100556A3/de
Application granted granted Critical
Publication of EP0100556B1 publication Critical patent/EP0100556B1/de
Expired legal-status Critical Current

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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
    • B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets

Definitions

  • the invention relates to a magnetic separator for separating magnetic particles, in particular from volatile dust.
  • a magnetic separator is known from PL-A-87 216, in which the poles form a working air slot in the form of a trapezoid.
  • a conveyor belt which carries the magnetic dust deposited thereon out of the area of the magnetic field, is displaceably arranged in this slot at the location of the greatest induction of the magnetic field. The arrangement of the movable belt in the area of the flowing dust lowers the dust-tightness and the functionality of the device.
  • a magnetic separator is known from PL-A-80 412, the ferromagnetic rotor of which has ferromagnetic teeth on its surface which are distributed on a helical line.
  • the material to be cleaned is placed on the rotary wheel.
  • the ferromagnetic particles contained in the substance accumulate in the air slot between the teeth of the impeller and the poles of the magnets, i.e. at the places where the magnetic field strength is greatest.
  • these points move towards one end of the gyroscope and thus the ferromagnetic particles also move.
  • a magnetic separator containing a ferromagnetic roller, on the surface of which teeth are arranged along a helix, and which is arranged between magnetic poles, is known from US-A-1948419.
  • the magnetic separator according to the invention is characterized in that a non-magnetic protection is placed on the roller, which forms the working slots with the plates that form the magnetic poles.
  • the roller or the cylinder can have additional recesses which cut through the helix of the teeth.
  • the arrangement between the plates of at least two cylinders one above the other increases the dust separation effect.
  • the non-magnetic protection can be profiled into a shape that corresponds to the radii of the cylinders.
  • Protrusions with a triangular cross section are preferably arranged in the dust flow zone, one of the sides of the triangle abutting the plate surface and the height of the protrusion being smaller than the width of the working slot. These projections produce an inhomogeneous magnetic field in the entire area of the work area.
  • the separator is characterized in that the plates which form the magnetic poles, together with the cylinders and working slots, are arranged symmetrically with respect to the excitation coil.
  • rollers of the cutter are preferably arranged in at least two vertical rows separated from one another by a working slot, magnetic inserts being arranged in the working slot, which form the triangular dust flow zones.
  • Such a roller arrangement makes it possible to increase the throughput of the cutter with the same plate thickness.
  • a fundamental advantage of the application of the invention is the maintenance of a high level of dust tightness and functionality by removing the movable elements from the area into which the dust flows.
  • high throughput and separation effectiveness are ensured by generating an inhomogeneous magnetic field in the entire space of the working slots.
  • the dust to be separated is fed through an inlet 7 to the flow zones, which are separated by strips attached to the plates 1 are. It is divided into two parts in the working slots 4 under the action of the magnetic field, the non-magnetic dust falling to an outlet 8 and the magnetic dust being deposited on the non-magnetic protection 3 at the level of the axes of the rollers 2. By rotating the rollers 2, the magnetic dust is transported along the axes thereof to the end of the slots 4, where it falls into the outlet of the ferromagnetic concentrate.
  • Fig. A roller is shown with additional recesses 14 which cut through the helix of the teeth.
  • inserts or projections are attached to the plates 1, which protrude from the working slots 4 and the dust flow zones 10.
  • two rows of rollers 2 are arranged between the plates 1 and are covered by a non-magnetic protection 3. Between the rows of rollers 2, a magnetic insert 12 is inserted in the working slot 11, which forms two triangular dust flow zones.
  • the plates 1, which play the role of the magnetic poles, together with the rollers 2, working slots 4 and 11 and magnetic inserts 9, 12 are arranged symmetrically with respect to the excitation coil 5.

Landscapes

  • Separating Particles In Gases By Inertia (AREA)
  • Cyclones (AREA)
  • Nonmetal Cutting Devices (AREA)
EP19830107649 1982-08-03 1983-08-03 Magnetscheider Expired EP0100556B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL23777682A PL134911B1 (en) 1982-08-03 1982-08-03 Magnetic separator
PL237776 1982-08-03
PL242061 1983-05-19
PL24206183A PL137774B3 (en) 1983-05-19 1983-05-19 Magnetic separator

Publications (3)

Publication Number Publication Date
EP0100556A2 EP0100556A2 (de) 1984-02-15
EP0100556A3 EP0100556A3 (en) 1985-01-16
EP0100556B1 true EP0100556B1 (de) 1986-11-20

Family

ID=26652971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830107649 Expired EP0100556B1 (de) 1982-08-03 1983-08-03 Magnetscheider

Country Status (4)

Country Link
EP (1) EP0100556B1 (cs)
CS (1) CS235336B2 (cs)
DD (1) DD209979A5 (cs)
DE (1) DE3367740D1 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634694A (en) * 1984-01-14 1987-01-06 Akzo N.V. Novel Δ4 - and Δ5 -androstene derivatives and pharmaceutical compositions containing these derivatives

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948419A (en) * 1929-09-02 1934-02-20 Granigg Bartel Method of and means for the magnetic separation of materials
US2913113A (en) * 1957-08-30 1959-11-17 Los Angeles By Products Co Method and apparatus for salvaging metal articles

Also Published As

Publication number Publication date
EP0100556A3 (en) 1985-01-16
CS235336B2 (en) 1985-05-15
DE3367740D1 (en) 1987-01-08
EP0100556A2 (de) 1984-02-15
DD209979A5 (de) 1984-05-30

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