JPH0331421Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to equipment for sorting dust containing metals.

[Conventional technology]

Conventionally, the reuse of dust such as waste (hereinafter simply referred to as dust) has been carried out as an effective use of resources, but the dust from crushed automobiles, etc. contains various materials such as metals, plastics, fibers, and rubber. Since these materials are mixed together, they cannot be used effectively as a resource unless they are separated.

Conventionally, these particles are dropped from an appropriate place, and then a wind is blown from below to separate the heavy dust that falls downward from the light dust that flows by the air. Then, from the remaining heavy dust, people manually sorted out non-ferrous metals that were not magnetized.

[Problem that the invention attempts to solve]

However, the above-mentioned wind sorter that separates heavy dust from light dust has a single-stage configuration, and in order to improve separation efficiency, the wind speed is relatively high.As a result, small particles or pieces of metal are blown away by the wind, reducing separation efficiency. There was a problem with it being bad.

In addition, when non-ferrous metals are collected by hand, large metals can be easily sorted out, but small particles are difficult to collect.

Furthermore, since the above-mentioned light dust contains various substances, the current situation is that it is not effectively utilized as a resource and is disposed of as waste.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide dust sorting equipment that efficiently sorts useful resources from dust.

[Means to solve problems]

The dust sorting equipment according to the present invention in accordance with the above purpose has a vibrating sieve that gradually conveys the dust raw material and removes the contained earth and sand, and a partition part inside, and the dust is removed by the vibrating sieve. a first wind sorting device that separates the dust raw material into heavy objects, light objects, and floating objects; and a second wind sorting device for re-sorting into floating objects, a magnetic sorting device for removing magnetically attached parts from the heavy objects sorted by the second wind sorting device, and a moving magnetic field generating means provided at the bottom. and an inclined sorting device for sorting out non-ferrous metals from the heavy objects from which the magnetized components have been removed, based on the difference in their friction coefficients.

Here, dust refers to materials mainly composed of metals, rubber, plastics, fibers, etc., and specifically refers to materials obtained by crushing automobiles or home appliances using a shredder machine.

[Effect]

First, the raw material dust is separated from non-combustible materials such as earth, sand, glass, etc. contained inside using a vibrating sieve, and then a relatively slow wind is blown by the first wind sorting device. The dust is separated into heavy, light, and suspended particles.

Then, the heavy objects are again blown by wind at a relatively slow speed by the second wind sorting device to separate light objects or floating objects adhering to the heavy objects and to sort out only the heavy objects. Since the wind speed of the first and second wind sorting devices is slow, it is possible to separate even small and heavy objects.Furthermore, since the wind speed is low in the first and second wind sorting devices, it is possible to separate even small and heavy objects. It becomes possible to separate lightweight objects and floating objects that could not be separated.

The heavy items sorted by the second wind sorting device are mainly composed of solid metals, rubber, and plastics, but the magnetically attached parts are separated by the magnetic sorting device, and then a moving magnetic field generating means is installed. Non-ferrous metals are separated by a tilted sorting device.

Here, the above-mentioned inclined sorting device separates non-ferrous metals from rubber, plastics, etc. based on the difference in the coefficient of friction peculiar to the materials, and since a moving magnetic field generating means is provided at the bottom, it is possible to Non-ferrous metals are accelerated and the separation efficiency is further improved.

〔Example〕

Next, an embodiment embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention.

Here, FIG. 1 is a block diagram showing a schematic configuration of dust sorting equipment according to an embodiment of the present invention, and FIG.
The figure is a schematic sectional view of the first and second wind sorting devices used in the above embodiment, and FIG. 3 is a perspective view showing the schematic configuration of the inclined sorting device used in the above embodiment.

As shown in FIG. 1, a dust sorting equipment 10 according to an embodiment of the present invention includes a vibrating sieve 11 for removing earth and sand, and a dust raw material from which earth and sand have been removed by the vibrating sieve 11. A first wind sorting device 12 that separates heavy objects, light objects, and floating objects; a second wind sorting device 13 that separates the heavy objects into heavy objects, light objects, and floating objects; Magnet roller 14 of a magnetically attached component removing device that removes magnetically attracted components from heavy items sorted by the wind sorting device 13
and an inclined sorting device 15 for sorting non-ferrous metals. These will be explained in detail below.

The vibrating sieve 11 is shaped like a gutter, and the bottom of the gutter is covered with a net having a predetermined opening (usually 8 mm).
Incombustible materials such as earth and sand, glass chips, etc. contained in the dust gradually introduced from the raw material input port 16 are removed. This non-combustible material falls to the bottom and is conveyed by the conveyor 17, but in the middle of the drop pipe 18, wind is blown diagonally from below, blowing up the lightweight materials contained in the non-combustible material. It is pneumatically transported and collected by a cyclone 19.

The dust from which earth, sand, glass, etc. have been removed by the vibrating sieve 11 is supplied to the first wind sorting device 12. As shown in FIG. Raw materials are supplied from the port 20 and allowed to fall, while relatively slow air (wind speed 3 to 5 m/sec) is blown from the side air inlet 21 to separate light materials and heavy materials, and floating materials are removed from the upper part. The air is discharged from the air outlet 22 along with the air.

Here, the term "heavy-containing material" refers to dust that is mainly composed of heavy materials such as metals and rubber, but also contains unseparated sponges, lightweight plastics, etc. The raw material is supplied to the raw material input port 24 of the wind sorting device 13.

The second wind sorting device 13 has a similar structure to the first wind sorting device 12, and further separates heavy objects into heavy objects, light objects, and floating objects.

The light objects separated by the first wind sorting device 12 and the second wind sorting device 13 are discharged from the discharge ports 25 and 26 and conveyed by the conveyor 27, and the floating matter is removed from the air discharge port 22. , 22a and collected by the cyclone 19.

Note that the main component of the lightweight items conveyed by the conveyor 27 is combustible materials, so
It can be used as fuel.

The above-mentioned heavy objects are conveyed by the conveyor 28, and since the conveyor 28 has a magnetic roller 14 at its tip, the magnetically attracted parts are dropped into a hopper 29 at the rear and placed on the conveyor 30 for recycling. The heavy objects from which the magnetized portion has been removed fall into the inclined sorting device 15.

This inclined sorting device 15 includes a sub-hopper 31 that spreads the raw material uniformly, an inclined part 32 that receives the raw material from the sub-hopper 31, and a linear type that is an example of a moving magnetic field generating means attached to the bottom of the inclined part 32. It has a motor 33, and first separates the raw materials that have fallen onto the slope 32 based on the difference in friction coefficient,
Linear motor 3 uses non-ferrous metals with a small coefficient of friction.
3, and is ejected from the tip of the inclined portion 32.

Therefore, the heavy objects released from the tip of the inclined portion 32 are rubber and plastic, which have a large friction coefficient, and the linear motor 33, which has a small friction coefficient.
Non-ferrous metals accelerated by

The separated non-ferrous metal and its remainder are conveyed to a predetermined location by conveyors 34 and 35, respectively, and are effectively used as resources.

Next, the entire air system will be described. Air is sucked from the air exhaust ports 36 and 37 of the cyclone 19 through a duct 38 and a damper 39 to a fan 40. On the other hand, a branch duct 41 is connected to the outlet of the fan 40, and a part of the branch duct 41 includes a damper 42 and an air purifying device (for example, a filter) 42.
It is released to the atmosphere through duct a, but the others are released to the atmosphere through duct 4.
3 and 44 respectively, the drop pipes 18, first and second
It is connected to wind sorting devices 12 and 13 and used as an air source for blowing up dust.

The dust sorting equipment 10 according to the above embodiment is configured as described above to separate dust made of a mixture of metals, rubber, fibers, and plastics from magnetic metals such as iron, etc.
Nonferrous metals, plastics that can be used as fuel,
It is sorted into rubber or fiber.

[Effect of idea]

As is clear from the above description, the dust sorting equipment according to the present invention first separates earth and sand using a vibrating sieve, and then uses first and second wind sorting devices configured in two stages. Since light objects, heavy objects and floating objects are separated by a relatively slow wind speed, they can be separated efficiently.

Next, the magnetically attached components of the heavy objects are removed by a magnetic sorting device, and the non-ferrous metal components are further sorted out by an inclined sorting device having a moving magnetic field generating device at the bottom. This method allows for more efficient sorting than that by hand sorting, and also enables the sorting of small particles of nonferrous metals that are difficult to sort by manual sorting.

Furthermore, the dust sorting equipment according to the present invention allows dust to be sorted more finely, making it possible to use it more effectively as a resource.

Furthermore, the entire process can be carried out under automatic control, making it possible to dispose of large amounts of dust at low cost.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of dust sorting equipment according to an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view of first and second wind sorting devices used in the above embodiment, The figure is a perspective view showing a schematic configuration of an inclined sorting device used in the above embodiment. Explanation of symbols, 10...Dust sorting equipment, 11
... Vibration sieve, 12 ... First wind sorting device, 13
... Second wind sorting device, 14... Magnetic roller (magnetic force sorting device), 15... Inclined sorting device,
33...Linear motor (moving magnetic field generating means).

Claims (1)

[Scope of utility model registration request] A vibrating sieve that gradually conveys the dust raw material and removes the contained earth and sand, and a vibrating sieve that has a partition inside and converts the dust raw material from which the earth and sand has been removed by the vibrating sieve into heavy objects, light objects, and suspended objects. a first wind sorting device that separates; and a second wind sorting device that has an internal partition and re-sorts the heavy objects sorted by the wind sorting device into heavy objects, light objects, and floating objects. ,
a magnetically attracted component removing device for removing magnetically attracted components from the heavy objects sorted by the second wind sorting device; 1. Dust sorting equipment comprising a tilt sorting device that sorts non-ferrous metals based on differences in friction coefficients.