DE842181C - Process for separating ferromagnetic metal parts from conveyed material - Google Patents
Process for separating ferromagnetic metal parts from conveyed materialInfo
- Publication number
- DE842181C DE842181C DEK6437A DEK0006437A DE842181C DE 842181 C DE842181 C DE 842181C DE K6437 A DEK6437 A DE K6437A DE K0006437 A DEK0006437 A DE K0006437A DE 842181 C DE842181 C DE 842181C
- Authority
- DE
- Germany
- Prior art keywords
- metal parts
- magnet
- ferromagnetic metal
- conveyed material
- separating ferromagnetic
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
Landscapes
- Geophysics And Detection Of Objects (AREA)
Description
Verfahren zur Ausscheidung von ferromagnetischen Metallteilen aus Fördergut Die Erfindung bezieht sich auf ein Verfahren zur Ausscheidung ferromagnetisclyer Metalle, insbesondere von Eisen, aus Fördergut, das z. B. auf Förderbändern transportiert wird.Process for the precipitation of ferromagnetic metal parts Material to be conveyed The invention relates to a method for separating ferromagnetic particles Metals, especially iron, from conveyed goods that are z. B. transported on conveyor belts will.
Bekannte Vorrichtungen zur Metallausscheidung bestehen in der Regel aus Magnetrollen, um die das Förderband läuft und an denen die magnetisierbaren Teile kurzzeitig haften, so daß sie aus der Bahn des übrigen Gutes abgelenkt werden, oder aber aus Metallsuchgeräten, in denen das Vorbeilaufen eines Metallteiles durch eine Anzeigevorrichtung oder durch Stillsetzen des Förderbandes kenntlich gemacht wird. Die Magnetrollen haben den Nachteil, daß sie schwere oder ungünstig geformte Eisenteile, wie Brechstangen, Schienenteile usw.; häufig nicht genügend ablenken und daher nicht entfernen. Die Metallsuchgeräte machen eine Entfernung von Hand notwendig und führen je nach ihrer Empfindlichkeit zu häufigen Stillsetzungen des Bandes oder aber zum Nichtansprechen bei kleineren Metallteilen.Known devices for metal precipitation usually exist of magnetic rollers around which the conveyor belt runs and on which the magnetisable ones Parts stick for a short time so that they are deflected from the path of the rest of the goods, or from metal detectors in which the passage of a metal part indicated by a display device or by stopping the conveyor belt will. The magnetic rollers have the disadvantage that they are heavy or awkwardly shaped Iron parts such as crowbars, rail parts, etc .; often not distracting enough and therefore do not remove it. The metal detectors do a removal by hand necessary and, depending on their sensitivity, lead to frequent shutdowns of the Tape or for not responding to smaller metal parts.
Die Erfindung besteht nun darin, daB das Fördergut zunächst durch den Ansprechbereich eines Metallsuchgerätes und anschließend durch den Wirkungsbereich eines Magneten, z. B. über eine Magnetrolle, geführt wird, wobei das Suchgerät die Felderregung des Magneten steuert: Dabei wird die Empfindlichkeit des Metallsuchgerätes so eingestellt, daß es bei normalen Eisenteilen, die von der Magnetrolle ohne weiteres erfaßt, werden, nicht anspricht, dagegen hei großen Eisenteilen eine kurzzeitige Ver= Stärkung des Magnetfeldes der Rolle bewirkt und bei übergroßen Eisenteilen, ein Warnzeichen gibt oder das Förderband stillsetzt: Die kurzzeitige Verstärkung des Magnetfeldes erfolgt über ein Relais, beispielsweise durch Spannungserhöhung auf den doppelten Wert. Da sich diese kurzzeitige Verstärkung auf einige Sekunden beschränkt, kann die QuerschnittsbelastungV':, des" Wicklungsdrahtes erheblich über den normalen Wert gesteigert werden, ohne daß die damit verbundene Erwärmung zu Schäden an der Wicklung führt.The invention now consists in that the conveyed material first passes through the response range of a metal detector and then through the effective range a magnet, e.g. B. is guided by a magnetic roller, the search device the Field excitation of the magnet controls: The sensitivity of the metal detector set so that it is normal for iron parts that are released by the magnetic roller without further detected, will not respond, on the other hand, with large iron parts a short-term Ver = strengthens the magnetic field of the roller and in the case of oversized iron parts, gives a warning sign or stops the conveyor belt: The short-term reinforcement of the magnetic field takes place via a relay, for example by increasing the voltage to double the value. Since this short-term gain lasts for a few seconds limited, the cross-sectional load V ':, of the "winding wire can be considerably higher the normal value can be increased without the associated warming Damage to the winding.
Neben der durch dieses Verfahren erreichten Sicherheit bei der Eisenausscheidung bringt die Erfindung den Vorteil, daß die Konstruktion des Suchgerätes infolge der geringeren Empfindlichkeit und die der Magnetrolle infolge der nur kurzzeitigen stärkeren Belastung erheblich vereinfacht werden kann.In addition to the safety of iron excretion achieved by this process the invention has the advantage that the construction of the search device as a result of lower sensitivity and that of the magnetic roller due to the short-term heavier load can be simplified considerably.
Der für die Erzeugung des Gleichstromes benötigte Umformer kann bei der Anwendung des Verfahrens nach der Erfindung kleiner gehalten werden als bisher. Der Stromverbrauch im laufenden Bi'tri@b ist' gering.The converter required to generate the direct current can be used at the application of the method according to the invention can be kept smaller than before. The power consumption in the running Bi'tri @ b is' low.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK6437A DE842181C (en) | 1950-09-19 | 1950-09-19 | Process for separating ferromagnetic metal parts from conveyed material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK6437A DE842181C (en) | 1950-09-19 | 1950-09-19 | Process for separating ferromagnetic metal parts from conveyed material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE842181C true DE842181C (en) | 1952-06-23 |
Family
ID=7211293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK6437A Expired DE842181C (en) | 1950-09-19 | 1950-09-19 | Process for separating ferromagnetic metal parts from conveyed material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE842181C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE969339C (en) * | 1954-12-16 | 1958-05-22 | Eisen & Stahlind Ag | Device for separating ferromagnetic metal parts from conveyed material transported on a conveyor belt |
DE1098464B (en) * | 1958-01-22 | 1961-02-02 | Peters Ag Claudius | Conveyor device for bulk material with a device for separating metallic foreign bodies |
-
1950
- 1950-09-19 DE DEK6437A patent/DE842181C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE969339C (en) * | 1954-12-16 | 1958-05-22 | Eisen & Stahlind Ag | Device for separating ferromagnetic metal parts from conveyed material transported on a conveyor belt |
DE1098464B (en) * | 1958-01-22 | 1961-02-02 | Peters Ag Claudius | Conveyor device for bulk material with a device for separating metallic foreign bodies |
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