JPH0760153A - Heavy fluid sorting device - Google Patents

Abstract

PURPOSE:To provide a heavy fluid sorting device by which a material to be treated is effectively sorted into a lightweight material and a heavyweight material and further where a heavy fluid circulation system is prevented from being clogged by the heavy fluid. CONSTITUTION:A sorting device is provided with a heavyweight fluid sorter 16 where a material to be treated is thrown in a sorting vessel 30 storing a heavy fluid 13 and is sorted by the heavy fluid into a lightweight material 19 and a heavyweight material 15 which floats and settles by specific gravity difference respectively, and draining screens 17, 18 where the heavy fluids stuck on the lightweight material 14 and the heavyweight material 15 separated by the heavyweight sorter 16 are washed off respectively. Thus a magnetic separator 19 where magnetic particles in the heavy fluids 13 discharged from the draining screens 17, 18 are separated by adsorption, a water tank 21 storing waste water from the magnetic separator 19 and having a discharge conveyor 20 for foreign matter in the waste water settled in the bottom part, a demagnetizer 22 for magnetic powder adsorbed by the magnetic separator 19, and a heavyweight fluid tank 29 in which the heavyweight fluid 13 demagnetized by the demagnetizer 22 is thrown and from which the heavyweight fluid 13 is fed to the heavyweight fluid sorter 16 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to heavy liquid sorting equipment,
More specifically, it relates to a heavy liquid sorting facility that can be used, for example, when recovering valuable metals from dust from crushed automobiles and the like.

[0002]

2. Description of the Related Art A scrapped automobile or the like is crushed into small pieces of 50 to 60 mm by a preshredder and a shredder, and then separated into light dust and heavy dust by a wind separator, and the heavy dust is separated by a magnetic separator. The scrap iron is removed and the scrap iron is recovered as a resource. Then, in the remaining heavy dust from which scrap iron is removed, non-ferrous metals such as copper, aluminum, zinc, and stainless, and glass and rubber are mixed, so non-ferrous metals, rubber,
It was separated from glass using wind screening or its electrical properties, and the separated non-ferrous metals such as copper, aluminum, zinc, stainless steel, and dust were separated by hand.

[0003]

However, in the conventional heavy liquid sorting method, nonferrous metals such as copper, aluminum, zinc, stainless steel, and dust are separated by manual selection in this way, so that the work is troublesome and the work efficiency is high. Was extremely bad.
Then, as shown in Japanese Patent Application No. 5-82646, the inventor of the present invention, in order to solve this, to put the processing raw material in a sorting container in which a heavy liquid mixed with magnetic powder such as magnetite is stored. We proposed a method and apparatus for sorting a light and heavy mixture which is charged and sorted into a floating lightweight material such as aluminum and another sedimenting heavy material due to a difference in specific gravity. In this method and device, the separated lightweight and heavy items are sifted while washing with a draining sieve, and the heavy liquid discharged from each draining sieve is temporarily stored in a tank and then pumped to a magnetic separator by a pump. To remove the magnetic powder, and then return the magnetic powder to the heavy liquid sorter for reuse. However, when the raw material to be treated is a scrap car, the heavy liquid after the heavy liquid selection contains impurities with relatively high specific gravity such as short cut copper wire and stainless wire, which were discharged from the draining sieve. There is a problem that the bottom of the tank for storing heavy liquid or the pump is clogged to stop the circulation system of heavy liquid. The present invention has been made in view of the above circumstances, and an object thereof is to provide a heavy liquid sorting facility capable of efficiently sorting a processing raw material into a lightweight material and a heavy material, and further capable of preventing clogging of a heavy liquid circulation system. And

[0004]

A method according to the above-mentioned object.
The heavy liquid sorting equipment described is a heavy liquid that puts a processing raw material into a sorting container in which the heavy liquid is stored, and sorts the processing raw material into a heavy material that floats due to a difference in specific gravity and a heavy material that sediments. A sorter, a draining sieve for washing off the heavy liquids adhering to the light weight and the heavy substances selected by the heavy liquid sorter, and adsorption of magnetic powder in the heavy liquid discharged from the respective draining sieves A magnetic separator that separates, the wastewater of the magnetic separator is stored, a water tank having a conveyor for discharging impurities in the wastewater that sink to the bottom, and a demagnetizer of the magnetic powder adsorbed by the magnetic separator. A heavy liquid tank that is supplied with the heavy liquid demagnetized by the demagnetizer and supplies the heavy liquid to the heavy liquid sorter is configured.

[0005]

The heavy liquid sorting equipment according to claim 1 is a crushed aluminum, copper, which is put in a sorting container of the heavy liquid sorting machine.
Processed raw materials containing zinc, lead, etc. are efficiently sorted into heavy liquids that float due to the difference in specific gravity and heavy substances that settle down, and then the sorted heavy substances and light weight substances are respectively passed through a draining sieve and attached. Heavy liquids and impurities are washed away. Then, the magnetic powder in the wastewater discharged from each draining screen is adsorbed and separated by the magnetic separator, and then the magnetic powder is demagnetized by the demagnetizer and then sent to the heavy liquid sorter for circulation. Therefore, even if impurities such as copper wire are contained in the waste liquid discharged from the drainage sieve, for example, the heavy liquid circulation system such as a pump for feeding the heavy liquid to the heavy liquid sorter will not be clogged. . On the other hand, the waste water from the magnetic separator from which the magnetic powder has been removed is stored in a water tank, and impurities such as copper wires in the stored waste water sink to the bottom of the tank and are discharged by a discharge conveyor. Therefore, the water in the water tank can be circulated and used, for example, as water for a draining sieve without causing clogging of the water circulation system.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 shows a schematic view of a heavy liquid sorting facility according to an embodiment of the present invention.

As shown in FIG. 1, in a heavy liquid sorting equipment 10 according to an embodiment of the present invention, a scrap car is crushed into 50-60 mm or less by a pre-shredder and a shredder, and a light dust is removed by a well-known wind sorter. From the processed raw materials from which magnetic substances such as iron have been removed by a magnetic separator,
A long sorter 11 for sorting small items, large items, long items such as electric wires and wires, a water washing machine 12 for washing dust and oil adhering to the selected treatment raw material of a predetermined size with water, and a treatment raw material after washing. A heavy liquid sorter 16 that separates the light weight 14 and the heavy load 15 by the heavy liquid 13, and a pair of draining screens 17 and 18 that wash off the heavy liquid that has adhered to the sorted light weight 14 and heavy load 15, respectively. Magnetic separator 19 for adsorbing and separating the magnetic powder in the heavy liquid 13 discharged from the draining screens 17, 18.
And a water tank 21 having a discharge conveyor 20 for storing the wastewater of the magnetic separator 19 and carrying out impurities in the wastewater settled at the bottom, a demagnetizer 22 of the magnetic powder adsorbed by the magnetic separator 19, The heavy liquid tank 24 is provided with the heavy liquid 13 demagnetized by the demagnetizer 22 and supplied to the heavy liquid sorter 16.

A carry-in device 25 composed of a plurality of conveyors is arranged upstream of the long-sized sorter 11 which is a cylindrical sieve-shaped rotating body. Below the long-sized sorter 11, small articles,
A large-sized or long-sized sorting device 26 is arranged, and the sorted products are stored in a small-sized collection box 27, a large-sized collection box 28, and a long-sized collection box 29, respectively. Washing machine 1
2 has a large-sized, substantially rectangular tubular washing container 30,
A discharge conveyor 31 provided with a large number of scraping plates at fixed intervals is obliquely provided between a pair of driven chains from the lower part in the water washing container 30 to the material discharge part. Further, a pair of upper and lower water outlets 32 of water pumped by the pump 30b from the circulating water tank 30a are provided on the peripheral side surface of the washing container 30 on the input side. In addition, the water blowing direction of the water blowing unit 32 is obliquely upward, and the dust and oil components adhering to the processing raw material by the water washing overflows from the dust discharging unit provided facing the raw material charging unit of the washing container 30 and dust box. Collected in 30c.

The heavy liquid sorting machine 16 is a device having substantially the same shape as the water washing machine 12, and has a sorting container 33 and a sorting container 3 as main bodies.
2, a pair of upper and lower blowing parts 34 of the heavy liquid 13 formed on the peripheral side surface on the input side, dust (such as glass) settled in the lower part of the sorting container 33, and a heavy load 15 such as copper, zinc, stainless steel, and iron. And a discharge conveyor 35 composed of a chain conveyor for discharging the heavy liquid (γ = 2.
The apparent specific gravity of 5) is increased (γ = 2.7), and the mixed aluminum is selected. The lightweight material 14 such as aluminum flows out from the lightweight material discharge portion provided for the raw material charging portion of the sorting container 33, and the heavy material 15 is discharged from the heavy material discharging portion of the sorting container 33 by the discharge conveyor 35. Since the lightweight material 14 is discharged together with the heavy liquid 13 from the heavy liquid sorting machine 16, it is sieved by the heavy liquid separating sieve 36 before being sent to the draining sieve 17. The heavy liquid separation sieve 36
The wastewater discharged from the tank is temporarily stored in the tank 36a and separated into heavy liquid 13 and water containing impurities. Of the heavy liquid 13, the heavy liquid 13 is returned to the heavy liquid tank 24, while the water is drained from the draining sieves 17 and 18. The wastewater containing the discharged impurities is sent to the magnetic separator 19.

A light-weight hopper 37 and a heavy-weight hopper 38 are arranged below the draining screens 17 and 18, respectively, and a pair of feeders 39 are provided below the discharge portions of both hoppers 37 and 38. Below the feeder 39, a sorting conveyer 41, in which a magnetic separator 40 is suspended above the downstream, is arranged. The magnetic separator 40 adsorbs and removes iron in the lightweight objects 14 and the heavy objects 15 to remove the iron. Dropped into 42. A feeder 43 is arranged below the sorting conveyor 41 on the downstream side, and a non-ferrous sorting machine 44 applying the principle of a linear motor is arranged below the feeder 43. Below the non-ferrous sorter 44, a sorting device 45 composed of a plurality of conveyors is arranged.
And the heavy load 15 are separately charged into the sorting device 4
Aluminum, dust, copper, zinc separated by 5
Stainless steel is recovered in the aluminum recovery box 46, the dust recovery box 47, the copper-zinc recovery box 48, and the stainless recovery box 49.

In the figure, reference numeral 50 is a water supply pump, reference numeral 51 is a dust box for impurities such as copper wire, reference numeral 52 is a heavy liquid pump, and reference numeral 53 is a heavy liquid for storing a heavy liquid having a specific gravity higher than that of the heavy liquid 13 used. The tank, reference numeral 54, represents a densitometer.

Next, the operation of the heavy liquid sorting equipment 10 according to one embodiment of the present invention will be described. As shown in FIG. 1, the processing raw material from which the light dust and scrap iron have been crushed and removed is introduced into the long sorter 11 by the carry-in device 25 to remove small objects, large objects and long objects, and the removed material is separated by the sorting device 26. As a result, the small item collection box 27, the large item collection box 28, and the long item collection box 29 are collected. Then, only the treatment raw material having a predetermined size is put into the water washing machine 12, and the water blown from the water blowing section 32 from below is sprayed onto the treatment raw material sinking in the washing container 30 to cause the light dust attached to the treatment raw material. Oil and oil overflow from the dust discharge portion of the washing container 30 and are collected in the dust box 30c. Further, the waste water taken out from the bottom surface of the water washing container 30 flows down into the circulating water tank 30a and is circulated and used as water for the water washing machine 12 by the pump 30b, and the impurities accumulated in the circulating water tank 30a are built in the conveyor. Is discharged to the dust box 30c.

The treated raw material settled in the lower portion of the water washing container 30 is discharged from the raw material discharge portion from the discharge conveyor 31 to the heavy liquid sorter 1.
6, and the heavy liquid 13 in the sorting container 33 separates it into a lightweight object 14 and a heavy object 15. The lightweight material 14 is sent from the lightweight material discharging portion to the draining sieve 17 via the heavy liquid separating sieve 36, and the heavy material 15 is sent from the heavy material discharging portion to the draining sieve 18 by the discharging conveyor 35. Each draining sieve 1
The lightweight object 14 and the heavy object 15 separated by 7, 18 are
Once stored in the lightweight hopper 37 and the heavy hopper 38,
At different times, the feeders 39 individually drop onto the sorting conveyor 41, and then the feeders 43 separate the various metals into various metals by the non-ferrous sorting machine 44, and each metal is separated by the sorting device 45 into an aluminum recovery box 46, Dust collection box 47, copper zinc collection box 4
8 and the stainless steel recovery box 49. The iron contained in the processing raw material is adsorbed by the magnetic separator 40 suspended downstream of the selection conveyor 41 and recovered in the iron recovery box 42.

The waste water containing impurities such as copper wires discharged from the draining sieves 17 and 18 is discharged from the bottom of the heavy liquid sorting machine 16 and the heavy liquid separating sieve 36 through the tank 36a. It is sent to the magnetic separator 19 together with the discharged wastewater on the dilution side (the thin line side in FIG. 1). In the magnetic separator 19, only the magnetic powder contained in the waste water is adsorbed and separated, and then the magnetic powder is demagnetized by the demagnetizer 22 and supplied into the heavy liquid tank 24. The heavy liquid tank 24 has a tank 36
The heavy liquid side drainage (thick line side in FIG. 1) discharged from a is directly introduced. The heavy liquid 13 in the heavy liquid tank 24 is adjusted to have a specific gravity of 2.5 using a densitometer 54.
A high-concentration heavy liquid is supplied from 3 to adjust the specific gravity, and thereafter, is pumped by the pump 52 into the heavy liquid sorter 16 for circulation and use. On the other hand, the magnetic separator 19 from which the magnetic powder has been removed
The drainage water is temporarily stored in the water tank 21. As a result, impurities such as copper wires sink to the bottom of the water tank 21,
The settled impurities are scraped up by the discharge conveyor 20 and collected in the dust box 51 from the discharge part of the water tank 21. Then, only the clear water of the water tank 21 is pumped 50
Thus, it is pumped to the draining screens 17 and 18 for reuse.

As described above, since heavy liquid sorting is used for sorting non-ferrous metals such as copper, aluminum, zinc, stainless steel, and dust, the work is easier and the work efficiency can be improved as compared with the conventional manual sorting. . In addition, the drainage containing impurities discharged from the draining screens 17 and 18 is
Before the pump 52 is pumped up, the magnetic powder in the waste water is adsorbed and separated in advance by the magnetic separator 19, and only the separated magnetic powder is supplied into the heavy liquid sorter 16 as a raw material for the heavy liquid 13. Therefore, even if impurities such as copper wire are contained in the waste water, clogging does not occur in the heavy liquid circulation system, such as the pump 52. Further, the drainage of the magnetic separator 19 is temporarily stored in the water tank 21, and impurities such as copper wires in the drainage are settled at the bottom of the water tank 21 and discharged by the discharge conveyor 20. The water in the water tank 21 can be circulated and used as the water for the draining screens 17 and 18 without causing the clogging of the water tank 21.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and any modification of the design without departing from the scope of the invention is included in the present invention. For example, in the embodiment, as the water washing machine, the one in which dust or oil adhering to the processing raw material is overflowed from the raw material feeding section by the rising water flow from the water blowing section is adopted. You may employ what sprays water and wash | cleans by a means. Heavy liquid sorting equipment, even if not limited to the equipment of this embodiment, heavy liquid sorting machine,
As long as it is equipped with a magnetic separator and its demagnetizer that adsorbs and separates only the magnetic powder that is the material of the heavy liquid before pumping up the drainage from the draining sieve, what other devices are installed. It may be.

[0017]

As described above, the heavy liquid sorting equipment according to the present invention adopts the heavy liquid sorting for the sorting of non-ferrous metals such as copper, aluminum, zinc, stainless steel and dust contained in the processing raw material, so that the sorting is automated. The working efficiency can be improved. Also, before the drainage containing impurities discharged from each draining sieve is pumped up, the magnetic powder, which is the raw material of the heavy liquid used in circulation, is adsorbed and separated from the drainage by a magnetic separator, Even if impurities such as copper wires are contained in the waste water, it is possible to prevent the heavy liquid circulation system from being clogged.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a heavy liquid sorting facility according to an embodiment of the present invention.

[Explanation of symbols]

 10 Heavy Liquid Sorting Equipment 11 Long Sorting Machine 12 Water Washer 13 Heavy Liquid 14 Lightweight 15 Heavy Weight 16 Heavy Liquid Sorting Machine 17 Draining Sieve 18 Draining Sieve 19 Magnetic Separator 20 Discharge Conveyor 21 Water Tank 22 Demagnetizer 24 Heavy Liquid Tank 25 Loading device 26 Sorting device 27 Small item collection box 28 Large item collection box 29 Long item collection box 30 Rinsing container 30a Circulating water tank 30b Pump 30c Dust box 31 Discharge conveyor 32 Water spouting part 33 Sorting container 34 Spouting part 35 Discharge conveyor 36 Heavy liquid separation sieve 36a Tank 37 Lightweight hopper 38 Heavy hopper 39 Feeder 40 Magnetic separator 41 Sorting conveyor 42 Iron recovery box 43 Feeder 44 Non-ferrous separator 45 Sorting device 46 Aluminum recovery box 47 Dust recovery box 48 Copper zinc recovery box 49 Stainless steel recovery box 50 Water supply pump 51 Dust box 52 Heavy liquid pump 53 Heavy tank 54 Concentration meter

Claims (1)

[Claims] 1. A heavy liquid sorter for introducing a processing raw material into a sorting container in which a heavy liquid is stored and sorting the processing raw material into a lightweight material that floats due to a difference in specific gravity and a heavy material that sediments. A draining screen for washing away the heavy liquid adhering to the lightweight material and the heavy material selected by the heavy liquid sorting machine, and a magnetic separation for adsorbing and separating the magnetic powder in the heavy liquid discharged from the respective draining screens. Machine, a water tank that stores the wastewater of the magnetic separator, and has a conveyor for discharging the impurities in the wastewater that sink to the bottom, a demagnetizer of the magnetic powder adsorbed by the magnetic separator, and the demagnetizer. And a heavy liquid tank for supplying the heavy liquid to the heavy liquid sorter, the heavy liquid being demagnetized by the heavy liquid sorter.