DE2800291A1 - Insulated wire segregation from non-ferrous metal mixt. - by covering mixture with ferromagnetic particle with subsequent glowing and magnetic separation - Google Patents

Abstract

The purpose of the installation is to segregate insulated wires or flexible conductors from an agglomerate of non ferrous metal parts in order to eliminate the damaging effect of these components on the further processing. The agglomerate arrives at the installation by conveyor belt and drops onto a vibration conveyor. The material passes a section where it is heated by up by burners while from hopper iron filings, heated up electrically, are spread on the agglomerate. Filings which do not cling to the agglomerate drop through a sieve into another hopper and container. The nonferrous agglomerate is then transported onto magnet drum which directs the installated wires to the container while the rest of the agglomerate drops into a container.

Description

Process for cutting insulated wires or strands

from non-ferrous metal scrap The invention relates to a method for cutting insulated wires or strands from a mixture of solid non-ferrous metal parts.

In non-ferrous metal mixtures, such as those used in the final stage of sink and swim systems are mostly insulated wires or strands.

These wires interfere with the further processing of the non-ferrous metal mixture considerable. If this mixture is processed thermally, for example, it will burn the rubber or plastic insulation to strong outgassing of toxic gases and thus to environmental pollution. These processes therefore rarely receive the required operating licenses. The insulated wires also interfere considerably with other methods, e.g. optical separation processes and make these procedures mostly impracticable.

The object of the invention is therefore to find a method with the help of which the mentioned wires or strands from the Mixtures can be excreted in order to send them to separate recycling. The invention solves the problem posed in that the agitated mixture first is isolated and then sprinkled with ferromagnetic particles and that the separation of the wires from the mixture takes place magnetically.

For example, the highly heated ferromagnetic particles like iron filings or the like. Poured or with a stream of hot air on the Mixture will be brought so that they penetrate into the insulating layer of the wires and stick there. It can be advantageous to preheat the entire batch. - Of the rest of the mixture, which are solid metal parts, the ferromagnetic ones fall Particles can be sieved off and thus reused. - In a magnetic Force field, e.g. a fall path, the wires can now be made electromagnetic capture and separate from the rest of the mixture.

The drawing shows an exemplary embodiment of a separating section for insulated wires or strands made of non-ferrous metal mixtures.

The mixture runs from a conveyor line 1 via the reverser 2 the vibratory conveyor 3 and moves through a heating section, for example is heated by gas burners 4. From a storage container 5 fall Iron filings after they have passed an electrical heater 6 on the Vibratory conveyor and thus on the non-ferrous metal mixture. The non-sticking iron filings are screened in the sieve line 7 and fall through the funnel for iron filings 8 into a container 9 underneath. The non-ferrous metal mixture is placed on a magnetic drum 10, which feeds the insulated wires to the container 11, while the rest of the mixture falls into the container 12.

Claims (1)

Claim method for cutting insulated wires or strands from a mixture of solid non-ferrous metal parts, characterized in that the moving Mixture is first separated and then sprinkled with ferromagnetic particles, wherein the ferromagnetic particles and / or the mixture is subjected to heating and that the wires are separated from the mixture magnetically.