JP2000225380A - Apparatus for separating metal ball mixed with waste plastic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus capable of perfectly separating a pachinko balls waste prepaid cards. SOLUTION: A metal ball separating apparatus consists of a hollow recovery cylinder having hollow journals fixed to the both ends thereof and having a plurality of holes provided to both end portions thereof, a pair of annular drum side plates 13 erected on the outer peripheries of both end portions of the recovery cylinder and having inwardly protruded flanges provided to the outer peripheral edges thereof, a plurality of crosspieces 17 attached to the drum side plates between the left and right flanges thereof, a plurality of partition plates attached between the crosspieces and the outer periphery of the recovery cylinder, a net cage member formed from a net body of which the upper surfaces is opened and five surfaces have meshes permitting a metal ball to pass, the recovery chute 20 which is arranged in the recovery cylinder and of which the end parts protrude from the hollow journals to the outside and the rotary drive means of a drum.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating metal spheres mixed in waste prepaid card as waste plastic used as an alternative fuel for a blast furnace.

[0002]

2. Description of the Related Art In recent years, products using plastic have been produced in large quantities, consumed, and then discharged as industrial waste. If this plastic waste is granulated and blown into a blast furnace, it is gasified and can be used as a reducing gas and a fuel gas. For this reason, waste solid plastic and waste film plastic have been granulated and blown into a blast furnace.

As waste solid plastics, used waste prepaid cards (made of plastic) are also recovered and used. In this waste prepaid card, a large amount of pachinko parlors are mixed, and used prepaid cards generated from pachinko parlors are collected with pachinko balls mixed therein. I have. It should be noted that metal pieces are also mixed in waste solid plastics other than used waste prepaid cards. The mixed pachinko balls and metal pieces are
In order to prevent breakage of the crusher blade, it is necessary to remove the crusher before applying it to the crusher.

FIG. 6 shows a waste solid plastic crushing system. Reference numeral 2 denotes an upstream conveyor, and 2b denotes a tail pulley, which is an ordinary belt pulley. Reference numeral 2a denotes a head pulley having a built-in permanent magnet for removing iron pieces and the like on the belt surface. 1 is a waste plastic receiving hopper provided at the tail of the upstream conveyor, 3 is an electromagnet type iron piece removing device provided in the middle of the upstream conveyor 2, 5 is a crusher, 6 is crushed waste plastic. Is a downstream conveyor for transporting to a blast furnace blowing facility (not shown).

[0005] The waste plastic in the waste plastic storage is put into a receiving hopper 1 by a shovel car, and is conveyed by an upstream conveyor 2 to remove an iron piece on the surface of the waste plastic by an iron piece removing device 3. Then, the iron piece coming out of the waste plastic on the belt surface is adsorbed from the waste plastic by the head pulley-2a having a built-in permanent magnet, and is dropped on the iron piece recovery shot 4a at the reversing section. The waste plastic from which the iron pieces have been removed in this way is sent to a crusher 5 through a stall, crushed to a blow size, and conveyed to a blast furnace blowing facility (not shown) by a downstream conveyor 6.

[0006]

However, when the waste prepaid card is treated by the above-mentioned crushing equipment, the pachinko balls protruding from the surface of the waste prepaid card layer are removed by an electromagnet type iron piece removing device 3. The pachinko balls protruding from the waste prepaid card layer to the belt surface are respectively removed by the head pulley 2a having a permanent magnet built in. However, two pachinko balls are disposed in the middle of the waste prepaid card layer. Pachinko balls sandwiched between the prepaid cards cannot be removed by the above-mentioned removing means.

As a method of separating the pachinko balls and the waste prepaid card, a method of applying a waste prepaid card to a wind separator is conceivable, but the waste prepaid card is stuck on the machine wall of the wind separator. Shelf suspension occurs, separation of the transport air and waste prepaid card is not completely performed, and the waste prepaid card is adsorbed on the outer surface of the filter cloth of the downstream bag filter, resulting in dust collection. A problem of impairing performance occurs. Therefore, it is not possible to adopt a method of using a wind separator.

An object of the present invention is to solve the above-mentioned problems and to provide an apparatus capable of completely separating pachinko balls from waste prepaid cards.

[0009]

SUMMARY OF THE INVENTION The present invention provides the above object,
(A) a hollow collecting cylinder having a plurality of holes through which metal spheres are passed around the ends of a hollow journal fixed to both ends;
(B) a pair of annular drum side plates having flanges protruding inward at the outer peripheral edges thereof and provided on the outer periphery of both ends of the collection cylinder, and (c) mounting between left and right flanges of the drum side plate. (D) a plurality of bars for equally dividing the outer peripheral surface of the drum, and (d) a plurality of partition plates attached between the bars and the outer peripheral tube of the collection tube for dividing the inside of the drum into a plurality of sections. A) a net cage formed in the plurality of compartments, the net basket being formed of a net having an open upper surface and five openings for allowing metal balls to pass therethrough, and (f) disposed inside the collection cylinder. This is attained by a separating device for separating metal spheres mixed into a waste plastic card, comprising a collecting shoe having an end protruding outside from the hollow journal and a (g) rotating drive means for the drum.

The waste prepaid card inserted into the mesh basket of the separation device is separated by rotation of the drum, and a metal ball (pachinko ball) sandwiched between the two waste prepaid cards during transportation. ) Is separated from the waste prepaid card.
The separated pachinko balls pass through the openings of the net cage while rolling in the net basket, and the net surface of the net basket and the side plate of the drum,
While moving in the gap formed between the partition plate and the collecting cylinder, the liquid passes through the hole of the collecting cylinder and is caught by the collecting shot.

[0011] The pachinko balls captured by the recovery stall are:
The collection shoot moves and is discharged outside the separation device.
On the other hand, the waste prepaid card in the net basket is discharged onto the lower conveyor when the open surface of the net basket faces downward.

In this manner, the pachinko balls which cannot be removed by the electromagnet type iron piece removing device or the like can be completely separated from the waste prepaid card by the device of the present invention.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the device of the present invention,
2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 2, and FIG. 4 is a front view of the apparatus of the present invention mounted in the middle of the conveyor belt.

An apparatus 10 for separating pachinko balls (metal balls) from a waste plastic card has a hollow collecting cylinder 12 at the center of a drum. As shown in FIG. 2, the collecting cylinder 12 is formed so that the diameter at the center is large and the diameter gradually decreases toward the end. Hollow journals 11a and 11b are fixed to both ends thereof,
It constitutes one shaft. A plurality of holes 12 a to 12 a are formed on the outer periphery of both ends of the collection cylinder 12. Hole 12a
Has a size such that a pachinko ball can easily pass through.

A pair of annular drum side plates 13 and 13 are provided upright on the outer periphery of both ends of the recovery cylinder 12. Flanges 24, 24 are attached to the outer peripheral edges of the drum side plates 13, 13 so as to project inward. And the left and right flange 2
Between 4 and 24, a plurality of bars 17 to 17 are arranged in parallel with the shaft body.
Is installed. And this cross 17-17,
The outer peripheral surface of the drum is arranged so as to be equally divided.

Reference numeral 15 denotes an open upper surface and other five surfaces 15
a, 15b, 15b, 15c, and 15c are fan-shaped net cages 15 each having a wire mesh having an opening through which pachinko balls (metal balls) can easily pass. A plurality of net cages 15 to 15 are provided with flanges 24 and 24 and bars 17 to 17.
The upper edge of the net cage 15 is fixed to the flanges 24, 24 and the bars 17 to 17 inside the drum defined by the circles. That is,
Inside the drum, a plurality of net cages 17 to 17
Reference numerals 17 are arranged radially around the collection tube 12. Pachinko balls can be easily moved between the wire mesh surface 15b and the drum side plate 13, between the wire mesh surface 15c and the partition plate 14, and between the wire mesh surface 15a and the outer peripheral surface of the collection cylinder 12. A space is formed.

Returning to the shaft, as shown in FIG. 2, one hollow journal 11a is supported by a bearing 21 and the other hollow journal 11b is supported by a bearing 21. It has a gear 22 at the null end; The gear 22 is driven by an electric motor via a drive gear (not shown).

As shown in FIG. 2 in the hollow portion of the collection cylinder 12,
A mountain-shaped pachinko ball recovery shoe 20 gently inclined from the center toward both ends is provided. The collection shoe projects outward from the ends (hollow journals 11a and 11b) of the collection cylinder 12 on both sides. Further, as shown in FIG. 3, the cross section of the collection shoe 20 is inclined toward the center, and has a circular arc-shaped groove 20a in the center where a pachinko ball is guided.

The apparatus 10 for separating metal spheres configured as described above is installed at the location shown in FIG. That is, a head hopper 1 for the upstream conveyor 2 having a waste solid plastic receiving hopper 1 in the tail portion, an electromagnet type iron piece removing device 3 in the middle thereof, and a pulley 2a having a permanent magnet built in the head thereof. It is attached below the rib-2a. A first intermediate conveyor for transporting the waste prepaid card or waste solid plastic from which mixed iron pieces or pachinko balls have been removed to a second intermediate conveyor 41 is provided below the metal ball separating device 10. 40 are provided.

FIG. 4 is a front view showing an installation mode of the metal ball separating device installed on the first intermediate conveyor. The metal ball separation device 10 has its shaft body (recovery cylinder 12 having a hollow journal) orthogonal to the machine length direction of the first intermediate conveyor 40, and is attached to the upper part of its conveyor belt. A shoe for relaying pachinko balls to a lower portion of the discharge end of the collection shoe 20 projecting from both ends of the shaft body to the outside.
At the discharge end, collecting boxes 8, 8 for pachinko balls are provided. Reference numeral 9 denotes a hopper for receiving waste solid plastic or waste prepaid card discharged from the head of the upstream conveyor 2, and a damper 9a is provided below the hopper.

Also, before inserting the waste prepaid card into the metal ball separating device 10, that is, under the damper 9a in FIG. 4, as shown in FIG. If an injection nozzle 25 for injecting pressurized air is provided, the lump of waste prepaid card can be spread,
The loose pieces can be inserted into the metal ball separating device 10.
Thus, the separation speed between the waste prepaid card and the pachinko balls can be increased.

The waste solid plastic or waste prepaid card falling through the hopper 9 and the damper 9a is:
Opening 1 provided on the outer periphery of the drum of metal ball separation device 10
8 to 18 are inserted into the respective net cages 15 to 15.

Next, a method for separating metal spheres by the metal sphere separating device 10 will be described. Returning to FIG. 5, before supplying the waste solid plastic or the waste prepaid card, the metal ball separation device 10 is driven to rotate. Upstream conveyor 2
While transported by the waste solid plastic or waste prepaid card, iron pieces near the upper layer surface and lower layer are removed, and the metal spheres rotating at a low speed through the hopper 9 are removed. It is inserted into each of the net cages 15 to 15 of the separation device 10. In the rotating mesh basket, the waste prepaid card and the like move from the top to the bottom together with the mesh basket while moving while being separated.

In the meantime, the pachinko balls or the metal spheres that can pass through the opening are released from the mesh basket into the space around the mesh basket described above, and the pachinko balls or the metal balls that can pass through the opening are moved to both ends of the collection cylinder. After passing through the opened hole 12a, the collection shot 20
Is captured by The captured pachinko balls and the like 31 roll in the central groove 20a of the collection shoe, and
Is discharged from the discharge end. The discharged pachinko balls, etc.
It is collected in the collection boxes 8, 8 via the shots 7, 7.

On the other hand, the waste prepaid card 30 or the like remaining in the mesh basket is carried by the first intermediate conveyor 40 when the mesh basket turns halfway from above and the opening 18 faces downward. It is discharged on the side belt. After this, the waste prepaid car
And the like 30 are fed into the crusher 5 by the second intermediate conveyor 41 and crushed.

[0026]

According to the metal ball separation apparatus of the present invention, metal balls such as pachinko balls which could not be removed conventionally can be completely removed from the waste prepaid card before being put into the crusher. Can be. Therefore, it is possible to prevent the crusher blade from being broken due to the pachinko balls mixed in the waste prepaid card which has conventionally occurred. Thereby, the operation rate of the waste solid plastic crushing equipment is improved.

[Brief description of the drawings]

FIG. 1 is a front view of the device of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a front view showing an installation mode of the device of the present invention.

FIG. 5 is a side view showing a mounting place of the device of the present invention in a crushing system facility and an aspect of the facility.

FIG. 6 is a side view showing a conventional crushing system equipped with iron piece removing means.

[Explanation of symbols]

 REFERENCE SIGNS LIST 7 SHUT 8 Pachinko ball collection box 9 Hopper 9a Damper 11a, 11b Hollow journal 10 Metal ball separation device 12 Collection cylinder 12a Hole 13 Drum side plate 14 Partition plate 15 Mesh basket 17 Beam 18 Opening 20 Reference numeral 21 Bearing 22 Gear 22 Flange 30 Waste prepaid card etc. 31 Pachinko balls etc. 40 1st intermediate conveyor 41 2nd intermediate conveyor

Claims (1)

[Claims] 1. A hollow collection cylinder having a hollow journal fixed to both ends and having a plurality of holes through which metal balls pass around the circumference of both ends, and (B) outer periphery of both ends of the collection cylinder. A pair of annular drum side plates having a flange protruding inward at the outer peripheral edge thereof, and (c) mounted between left and right flanges of the drum side plate to equally divide the outer peripheral surface of the drum. A plurality of bars; (d) a plurality of partition plates attached between the bars and the outer periphery of the collection cylinder, and dividing the inside of the drum into a plurality of partitions; and (e) a plurality of partition plates attached in the plurality of partitions. A mesh basket formed of a mesh body having an open upper surface and five faces having openings for allowing metal balls to pass therethrough; and (f) disposed inside the collection cylinder, and having an end portion formed by a hollow journal. Waste plastics consisting of a recovery shoe that protrudes to the outside, and (g) drum rotation driving means Metal ball separator mixed in tick card.