JPS5819337B2 - Dry solid sorting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a dry solidification method for separating and sorting solid industrial waste such as crushed electric wires and municipal waste into heavy and light materials based on the difference in specific gravity.

The present invention relates to a sorting device, and particularly to a separation promoting device of this dry solid sorting device.

Conventionally, devices for separating and sorting this type of material into heavy and light materials include, in addition to liquid media, dry methods (1), devices that utilize gravity and wind power, and (2) devices that use gravity and wind power.
), Separation and sorting using the magnetic force of magnets, (
3) Separation and sorting using centrifugal force can be mentioned.

That is, in the sorting device described in item (1) that uses gravity and wind power, the separation efficiency is low because the width of the boundary area between the heavy objects and the light objects separated from the objects to be separated is relatively wide.

Furthermore, although the magnetic sorting device described in item (2) is effective for magnetic materials such as ferrous materials, it cannot separate and sort non-ferrous metals.

Furthermore, the sorting device using centrifugation in item (3) uses vibration,
1. The noise is intense, which may cause pollution problems, and the boundary area between the heavy and light objects to be separated becomes wide, making it difficult to increase the separation efficiency.

Therefore, the applicant first developed a dry specific gravity sorting means using powder or granular material (medea) as a medium, in which the material to be separated and the granular material are mixed and transferred into an inclined sorting truss. Due to the difference in specific gravity and the above-mentioned granular material as a medium, light objects (also called floating objects because they are lighter than media) and heavy objects (also called sediments) are separated, and the light objects and heavy objects are passed through the sorting trough. A separating plate provided at the lower end of the media separates the media into a light object with a media and a heavy object with a media, and the separated media, one of the light objects, and the heavy object are tilted. Each dividing sieve trough provided (also called dividing sieve body)
We have already proposed a dry sorting device in which the media are transferred to a sieve, where only the media is separated and removed, and the objects to be separated are separated into heavy items and light items.

However, the above-mentioned dry solid sorting device uses media as a medium to separate the materials on an inclined sorting trough, and theoretically can separate and sort the materials into heavy and light materials based on the difference in specific gravity. When the width of the sorting trough is increased and the size of the sorting trough is increased, the separation effect of the material to be separated at the approximate center of the sorting trough is delayed compared to the vicinity on both sides of the sorting trough, resulting in a decrease in separation efficiency. There are some difficulties, such as having to

On the other hand, if the flow rate of the material to be separated in the approximate center of the sorting trough is increased, the separated lightweight materials located near both sides of the sorting trough are mixed into the powder and granular material (media). There are drawbacks such as fogging and preventing effective separation.

In order to solve the above-mentioned difficulties, the present invention has a large number of separation aiding members installed on the bottom plate of the inclined sorting trough, thereby promoting the floating and settling of the objects to be separated, and weighting the objects to be separated. To provide a dry solids sorting device which is capable of completely separating solids from light objects in one step, and which is also applicable to large sorting troughs.

Hereinafter, the present invention will be described with reference to an illustrated embodiment in which electric wires pre-pulverized to an appropriate size are used as objects to be separated.

In FIGS. 1 to 4, reference numeral 1 denotes a media supply device that is equipped with a hopper 1a and that continuously supplies powder or granular material (media) A as a medium, which is transported by an electric feeder 1b. In a position close to this media supply device 1, a raw material supply device 2 using, for example, a conveyor conveys a material to be separated B mixed with crushed clothing pieces (light objects) and copper pieces (heavy objects). It is provided.

Further, below the media supply device 1 and raw material supply device 2, a sorting trough 3 is held obliquely by a support frame 17, and is floated by a plurality of elastic bodies 18 such as coil springs on a flat substrate 19. It is set up in good condition.

Further, at the lower end 3a of the sorting trough 3, an extraction port 4 for the separated heavy items W and an extraction port 5 for the lightweight items P are horizontally partitioned by a functional separation plate 6. As shown in FIGS. 1 and 4, on the bottom plate 3c of the sorting trough 3, a large number of rod-shaped separation assisting members 22 are installed in parallel in a straight line.

Note that the separation assisting member 22 may be installed so as to be slightly inclined in the longitudinal direction of the sorting trough 3, as shown by the chain line in FIG.

On the other hand, below the above-mentioned both sleeve outlets 4 and 5, the above-mentioned granular material A
Each dividing sieve trough (also referred to as a dividing sieve body) 7 and 8, which is divided into two in the longitudinal direction by a partition plate 16, is provided integrally and inclined. A discharge port 9 for a heavy object W and a discharge port 10 for a light object P are formed in the lower end portions 7a and 8a of and 8, respectively.

Furthermore, a heavy object recovery container 11 and a light object recovery container 12 are arranged below the discharge ports 9 and 10, respectively, and the dividing sieve portions 7b and 8b of each dividing sieve trough 7.8 are provided.
Immediately below the media recovery trusses 13 and 14 are provided at an angle.

Further, both media collection trusses 13° 14 are connected via a hopper 21 to the hopper 1a of the media supply device 1 by a packet conveyor 15, and the powder and granules collected by these media collection trusses 13° 14 are A can be conveyed to the media supply device 1 by the packet conveyor 15.

Hereinafter, the effects of the present invention will be explained.

Therefore, by driving the media supply device 1 in advance, a dry powder A (with a specific gravity of 4.5 seconds), for example, which is intermediate in specific gravity between the heavy material W and the light material P of the material to be separated B, is prepared. 7)
falls onto the upper end 3b of the inclined sorting truss 3 and is supplied.

On the other hand, the eccentric rotation device 2 installed in the middle of the substrate 19
0, the crank part 2 of this eccentric turning device 20
Since 0a slowly rotates the support frame 17 which is continuous with it, the powder A flows down inside the sorting trough 3 in a layer higher than the separating plate 6.

Next, by driving the raw material supply device 2, the coated pieces (light pieces) P of the pulverized synthetic resin (specific gravity 0.92) and the heavy pieces W of copper pieces (specific gravity 8.96) are mixed to be separated. The material B is dropped onto the upper surface of the granular material A forming a laminar flow in the sorting trough 3.

Then, the heavy material W of the material to be separated B gradually settles inside the powder or granular material A and is transferred to the bottom plate 3c of the sorting trough 3, and is transferred to the extraction port 4 of the heavy material W of the sorting trough 3. The powder and granules A are extracted together with the granular material A, and fall into the next separating sieve trough 7, and furthermore, this powder and granular material A and various heavy objects W are extracted into the separating sieve section Ib.
While moving above, it is delivered to the discharge port 9 and falls into the recovery container 11 for heavy objects W, where it is stored.

At the same time, the granular material A is sieved by the sieving section 7b and stored in the hopper 21 via the collection truss 13.

On the other hand, even if the lightweight material P of the object to be separated B falls onto the powder or granular material A and attempts to settle, it is blocked by the powder or granular material A, which has a higher specific gravity than the lightweight material P, and cannot descend. The peas floating on the granular material A pass through the separating plate 6 together with the granular material A, and are separated and extracted together with the granular material A from the extraction port 5 of the lightweight material P.

Next, this granular material A and one of the lightweight materials P are transferred to a separating sieve trough 8.
Further, while moving on the separating sieve section 8b, the granular material A and one of the lightweight materials P fall from the discharge port 10 into the recovery container 12 for the lightweight materials P and are stored therein.

At the same time, the granular material A is sieved by the sieving section 8b and stored in the hopper 21 through the collection truss 14.

What should be noted here is that each separation assisting member 22 is implanted in the bottom plate 3c of the sorting truss 3.

The object B to be separated near the approximate center of the sorting truss 3 is assisted in flotation with respect to the light object P through the medium, that is, the granular material A, while the heavy object W The present invention is designed to promote a rectifying action in the entire inclined flow direction of the sorting truss 3 while assisting the settling action.

Therefore, the separation efficiency of the enlarged sorting truss 3 is further improved.

In this way, the material to be separated B is completely separated and sorted into heavy material W and light material P in one step by the cooperative action of the medium of powder and granular material A and the separation assisting members 22 described above. It is now possible to do so.

Note that the hoppers 21 of both the media collection troughs 13 and 14
The powder and granular material A stored in the granular material A is returned to the hopper 1a of the media supply device 1 by a packet conveyor 15.

Next, the embodiment shown in FIG. 5 is another embodiment of the present invention, in which a separation assisting member 22' having a strip plate shape is vertically planted on the bottom plate 3c of the sorting trough 3. This is substantially the same content as the rod-shaped one described above.

The embodiment shown in FIG. 6 is another embodiment of the present invention, in which a separation assisting member 27 in the shape of a threaded rod (wire rod) is implanted in the bottom plate 3c of the sorting trough 3. This is the same content as each of the above-mentioned body examples.

Furthermore, the large number of separation assisting members 22 installed at the bottom 3c of the sorting trough are not limited to being arranged in parallel straight lines, but may also be installed in a staggered manner or in a random manner. It is.

On the other hand, although one embodiment of the present invention has been described in which a crushed electric wire is used as the material to be separated B, within the scope of the present invention, for example, the powder or granular material A may be separated for any number of seconds. By using powder and granular materials with different specific gravity, it is possible to separate and sort other industrial wastes by skillfully utilizing the difference in specific gravity.

As described above, according to the present invention, the sorting trough 3 that allows the powder or granular material A to be continuously supplied and separates the material to be separated B based on the difference in specific gravity is provided at an angle. A large number of separation assisting members 22 are installed on the bottom plate 3c, and an extraction port 4 for heavy materials W and an extraction port 5 for light materials P are provided at the lower end 3a of the sorting trough 3 separated by a separation plate 6, Since each slanted sieve trough 7.8 for sieving the granular material A is arranged below the outlets 4 and 5, it is possible to completely separate and sort the material B in one step without getting it wet. In addition, since the separation assisting member 22 promotes flotation and sedimentation, even if the sorting trough 3 becomes large, it will be effective.
This increases separation efficiency, reduces vibration and impact, and allows quiet separation and sorting.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a dry solid sorting device according to the present invention;
The figure is a plan view taken along the dashed line A-A in FIG. 1, FIG. 3 is a plan view taken along the dashed line B-B in FIG. 1, and FIG. 4 shows an enlarged view of only the essential parts of the present invention. The sectional views, FIGS. 5 and 6, are views showing other embodiments of the present invention. 1... Media supply device, 2... Raw material supply device, 3... Sorting trough, 3c...
Bottom plate, 4, 5... Extraction port, 6... Separation plate, 7, 8... Sieve trough, 9゜10...
...Discharge port, 11, 12... Collection container, 13゜14... Media collection trough, 15...
Packet conveyor, 20... Turning drive device, 2
1...Hopper, 22...Separation assisting member.

Claims (1)

[Scope of Claims] 1. A sorting trough is provided at an angle so that the powder and granular material is continuously supplied and the substances to be separated are separated by the difference in specific gravity, and a number of separation aiding members are provided on the bottom plate of the sorting trough. planted, and a separated heavy material extraction port and a light material extraction port are provided at the lower end of the sorting trough, separated by a separation plate,
A dry solids sorting device characterized in that a slanted sieve trough for sieving the powder or granular material is arranged below the two extraction units [ ]. 2. The separation assisting member installed in the sorting trough is a rod. The dry solid sorting device according to claim 1, characterized in that it is formed into a strip plate or a threaded rod. 3. The dry solidification according to claims 1 and 2, characterized in that a plurality of separation assisting members are arranged in a linear or staggered manner on the bottom plate of the sorting trough. Body sorting device.