DE1957636A1 - Process for separating iron from garbage - Google Patents

Description

Hartzerkleinerungs- und Zement-Masehinenbau-Ges.mbH
44 Münster / Westf.
Rösener Str. 6/8

Münster / Westf., November 14, 1969

Process for separating iron from garbage.

The invention relates to a method for separating iron parts from garbage.

Bas is excretion of the iron parts contained in the garbage
on the one hand it is desirable because of its fourth, on the other hand it is desired
This measure is necessary to prevent any downstream machines for processing the waste from being destroyed
maintain.

It is known that the iron parts by magnets, which are mounted in the drums of the conveyor belts, or by so-called Separate overbelt magnets from the garbage above the conveyor belts.

However, because of the extremely different nature of the garbage, the iron parts are partly strongly matted with the non-ferrous garbage parts, it is
it is inevitable that many pieces of waste will be carried away with the iron and eliminated. The value of the scrap iron obtained becomes great as a result of its pollution
reduced.

Attempts have therefore been made to remove what was initially still contaminated
Iron again to a magnetic sorting treatment
undergo. However, this method only incompletely fulfills the intended purpose, since the iron parts consist of a relatively stationary state and a layered arrangement of the

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Good will be attracted by the magnets, with the non-ferrous material lying in between again against the magnetic one Stapled surface and carried out together with the iron.

The invention is based on the object of the mixture of iron parts and non-iron parts to the magnetic lines of force present so that the iron parts are attracted, on the other hand, the non-ferrous parts have the opportunity to separate from the iron parts and fall out. tuck The object is achieved according to the invention in that the part falling from a magnetic tape still has non-magnetic parts contaminated goods on an almost vertically rising Magnetic tape is passed, from which the metallic components are caught and so from the alone under the Influence of their gravity standing non-metallic components are separated.

In a further embodiment of the invention, an air flow directed in the direction of fall of the non-ferrous parts, their Waste or Promote separation of the iron parts. The almost vertically arranged magnetic tape can simultaneously serve to convey the parts to be separated to a collection point, where another is attached to the waste of the tape Air flow separates any remaining parts of non-magical good from the iron "

An embodiment of the invention is shown in the drawing and is described in more detail below:

An overband magnet 2 is arranged in a manner known per se over 3inest the trash transporting conveyor belt i, the conveyor belt 3 of which is moved past the attracted. Iron parts with the adhering »foreign bodies, for example. the limitnksifcl! se 4 throws off “Di © in its roughly along a * p:

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- 3 - iyb / 636

gets into the force line area of an approximately vertically arranged magnetic tape 5 »which contains the iron parts attracts, while the non-ferrous bodies dissolved as a result of the turbulence in the waste settle on the conveyor belt 6 fall and be carried away by this. This waste process can be vertical by one of the fan 7 downward air jet 8 are supported.

The magnetic tape 5 is expediently used as a conveying means to convey the precipitated iron to a higher level, from which it falls through a shaft 9 into the collecting container 10 »Here it is useful again penetrated by an air flow Ii directed perpendicular to the direction of fall of the material, which removes the impurities blows into a calming chamber 12, from which they slide onto the conveyor belt 6. The blown air is through the deflection gills 13 derived.

The advantages achieved by the invention are in particular that the particular nature of the garbage Non-ferrous parts firmly attached to the iron parts are largely separated off, thereby reducing the value of the recovered iron scrap is increased significantly.

109822/0787

Claims (1)

iyh / 636 Claims 1) Method for separating iron parts from garbage, at to which the ferrous garbage conveyed on a conveyor belt is exposed to the influence of an overband magnet is, characterized in that the falling from the overband magnet (2) magnetic and also the mixed with non-magnetic garbage components respectively. afflicted goods in a falling motion on one another almost vertically rising magnetic tape (5) is passed, from which the metallic components are caught and so from the under their own weight downwardly falling non-metallic components are separated. 2) Method according to claim 1, characterized in that one under the overband magnet (2) passed Conveyor belt (3) in its course transversely against the steep upwards guided strand of the magnetic tape (5) is directed in such a way that both the iron parts thrown off by it as well as the iron parts matted with garbage from this second magnetic tape (5) from the movement taken out. 3) Method according to claims 1 and 2, characterized in that to increase the separating effect between the deflection point (4) of the conveyor belt (3) and the ascending strand of the magnetic belt (5) a downward air flow (8) is passed . 109822/0787 19SV636 k) Device for carrying out the method according to claims 1 to 3, characterized in that the ascending magnetic tape (5) is converted into the horizontal in its upper part serving only as a conveyor belt and ends above a shaft (9) through which transversely to Direction of fall of the iron parts thrown off the belt, an air stream is passed through, which conveys any remaining non-metallic components of the conveyed garbage into a chamber (12), from which it is fed to a conveyor belt (6). 5) Device according to claims 1 to 4, thereby marked draws that the chamber (12) above against the magnetic tape (5) covering wall with deflection gills (13) for the Outlet of the blown air is provided. 109822/0787 Blank page