JPH081041A - Device for separating iron scraps from crushed material - Google Patents

Abstract

PURPOSE:To keep the recovery rate of iron scraps high by arranging a belt type magnetic separator above a carrying conveyor, a vibrating conveyor below the carrying end of the carrying conveyor, and a drum type magnetic separator at the discharge end of the vibrating conveyor. CONSTITUTION:At one end part of a carrying conveyor 1, a hopper 2 for receiving a crushed material is installed, and on the other end side, a belt type magnetic separator 3 is hung leaving a prescribed space between it and a belt of the carrying conveyor 1. Below the discharge end of the carrying conveyor 1, a vibration conveyor 4 is installed at a position in which a crushed material discharged from the carrying conveyor 1 is received. Below the discharge end of the vibrating conveyor 4, a drum type magnetic separator 5 is installed at a position in which the crushed material discharged from the vibrating conveyor 4 is received. In this way, an iron scrap separator in which the recovery rate of iron scraps from a crushed material is not lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron piece separating apparatus for magnetically separating an iron piece which is a magnetic material from a crushed material obtained by crushing waste home electric appliances and the like.

[0002]

2. Description of the Related Art Conventionally, various devices have been used for separating iron pieces from crushed materials such as waste home electric appliances, and as shown in FIGS. A hopper 31 for receiving crushed material is installed on one end side of the transfer conveyor 30, and a belt type magnetic separator 32 is hung on the other end side of the belt 301 of the transfer conveyor 30 at a predetermined interval. The belt type magnetic sorter 32 includes pulleys 321, 321, 322, 322 rotatably arranged, a belt 323 wound between the pulleys 321, 321, 322, 322, and pulleys 321, 321. It is composed of a magnet body 324 arranged and an electric motor 325 for rotating the belt 323 via a pulley 321. A crushed material discharge chute 33 is installed below the carry-out end side of the conveyor 30 to discharge the selected crushed materials to another carrier or a storage tank (not shown). Further, an iron piece discharge chute 34 is provided below the belt 324 of the belt type magnetic sorter 32 in the moving direction.
Is installed, and the iron pieces separated by the belt-type magnetic separator 32 are discharged to another carrier or a storage tank (not shown). The magnet body 324 of the belt-type magnetic sorter 32 is stretched so that one end of the magnet body 324 overlaps the iron piece discharge chute 34 in position. When the crushed material conveyed by the conveyor 30 passes under the belt type magnetic sorter 32, the magnet 32
Iron pieces are attracted from the crushed material by the magnetism of No. 4 and are attracted to the magnet body 324 via the belt 323. The attracted iron piece is conveyed by the belt 323 to the position of the iron piece discharge chute 34, that is, to the end of the magnet body 324, where the magnetism of the magnet body 324 does not influence, and the iron piece separates from the belt 323. It is discharged into the discharge chute 34. The crushed material from which the iron pieces have been separated is discharged from the conveyor 30 to the crushed material carrying-out chute 33. In order to further increase the recovery rate of iron pieces, a known drum-type magnetic sorter is disposed below the carry-out end of the conveyor 30 and a belt-type magnetic sorter 32 separates the iron pieces into drums from the crushed material. There is also one that further separates iron pieces with a magnetic separator.

[0003]

However, the amount of crushed material is not always a constant amount and often varies with time. Therefore, the larger the amount of crushed material, the greater the layer thickness of the crushed material conveyed on the conveyor, and the greater the resistance when the iron pieces are attracted to the magnet body,
There is a problem that the recovery rate of iron pieces is reduced. An object of the present invention is to improve the above-mentioned problems and to provide an iron piece separating device capable of maintaining a high iron piece recovery rate.

[0004]

The present invention is an apparatus for separating iron pieces from crushed material, in which a belt-type magnetic separator is arranged on the upper part of a conveyor, and a vibrating conveyor is arranged on the lower part of the carry-out end of the conveyor. In addition, a drum-type magnetic sorter is provided at the discharge end of the vibration conveyor.

[0005]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a side view thereof. In the figure, reference numeral 1 is a conveyor, and a crusher (not shown) is arranged in the preceding stage thereof. Transport conveyor 1
A crushed material blowing-in hopper 2 is installed at one end, and a belt-type magnetic separator 3 is hung at the other end with respect to the belt 11 of the conveyor 1 with a predetermined gap. The vibrating conveyor 4 is installed at a position below the discharge end of the conveyer conveyor 1 to receive the crushed material discharged from the conveyer conveyor 1, and the position below the discharge end of the vibrating conveyor 4 to receive the crushed material discharged from the vibrating conveyer 4. The drum type magnetic sorter 5 is installed in the. The belt type magnetic sorter 3 has front and rear pulleys 3a,
3a, 3b, 3b are mounted, and the magnet body 3c is arranged between them. Magnet body 3c In this embodiment, a permanent magnet is used, but an electromagnet may be used. And each pulley 3a, 3a, 3
The belt 3d is wound around b and 3b, and the electric motor 3e and the pulley 3 are
A is connected by a chain 3f, and the belt 3d is driven by the electric motor 3e. In this embodiment, the belt 1a of the conveyor 1 and the belt 3d of the belt type magnetic sorter 3 are arranged so as to be orthogonal to each other, but they may be arranged in parallel. An iron piece discharge chute 6 is installed outside the conveyor 1 and below the belt 3d of the belt type magnetic separator 3 in the moving direction. The vibrating conveyor 4 used was a commercially available known one, and the trough 4a was made of non-magnetic stainless steel. In the drum type magnetic sorter 5, a non-magnetic stainless steel drum 5b is rotatably arranged in a casing 5a, and a magnet body 5c is fixedly arranged therein, and the magnet body 5c is substantially perpendicular to the casing 5a. 18 from above vertically below
It was formed so that the magnetism appeared in the range of 0 degree. Casing 5
A first discharge chute 5d and a second discharge chute 5e are provided in the lower part of "a", and a separation plate 5f is arranged at the branch position of both. The drum 5b is driven by an electric motor (not shown) installed in the casing 5a.

Next, the operation of the above configuration will be described. The crushed material crushed by a crusher (not shown) is supplied onto the conveyor 1 via the hopper 2 and conveyed in the A direction on the belt 1a. When reaching the lower part of the belt type magnetic sorter 3, the iron pieces mixed in the crushed material are attracted by the magnetism of the magnet body 3c and adsorbed to the magnet body 3c via the belt 3d. Since the belt 3d rotates in the direction orthogonal to the belt 1a of the conveyor 1, the iron pieces adsorbed are discharged to the iron piece discharge chute 6 installed outside the side surface of the conveyor 1. Further, the crushed material from which the iron pieces have been removed is discharged from the conveyor 1 onto the vibrating conveyor 4 and conveyed on the trough 4a of the vibrating conveyor 4 in the B direction. At that time, the crushed material is conveyed while being vibrated, so that the crushed material has a substantially uniform layer thickness on the trough 4a, and further, the entangled iron pieces and other crushed materials are separated by the stirring action. Therefore, it becomes easier to sort by magnetism. In addition, iron flakes have a larger specific gravity than other crushed materials,
The trough 4a is sunk in the bottom portion of the trough 4a, and can be more easily sorted by the drum type magnetic sorter 5 described below.

The crushed material is supplied to the drum type magnetic sorter 5 from the trough 4a of the vibrating conveyor 4 in the above state. As described above, the crushed material in which the iron piece sinks to the lower side is the drum 5a.
Since the iron pieces are supplied to the surface of the drum 5, there is a high probability that the iron pieces directly collide with the drum 5a, and thus the recovery rate of the iron pieces is improved. Of the crushed material supplied to the drum 5a, the non-magnetic material falls by gravity just below the drum and is discharged to the first discharge chute 5d. The iron piece is reversed by about 180 degrees while being attracted to the surface of the drum 5a by the magnetism of the magnet body 5b, falls at the position where the magnetism stops acting, and is discharged to the second discharge chute 5e.

[0008]

EFFECTS OF THE INVENTION Since the present invention has the above-described structure, it is possible to provide an iron piece separating device that does not reduce the recovery rate of iron pieces from the crushed material.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of an embodiment of the present invention.

FIG. 3 is a front view of a conventional example.

FIG. 4 is a side view of a conventional example.

[Explanation of symbols]

1 conveyor, 1a belt, 3 belt type magnetic sorter, 3c magnet body 3d belt, 4 vibrating conveyor, 4a trough, 5
Drum type magnetic sorter 5b Drum, 5c Magnet body

Claims (1)

[Claims] 1. A belt-type magnetic sorter is arranged above the conveyer conveyor, a vibrating conveyer is arranged below the carry-out end of the conveyer conveyor, and a drum-type magnetic sorter is arranged at the discharge end of the vibrating conveyer. A device for separating iron pieces from crushed materials, which is characterized in that