JPH05115849A - Sorting device for milled noncombustible material - Google Patents

Abstract

PURPOSE:To surely remove combustible material from milled noncombustible material to sharply increase the purity of the noncombustible material. CONSTITUTION:Milled noncombustible material put into a vibrating screen 4 moves on a perforated plate while being vibrated with a vibrating means 9. On the other hand, air fed into compartments 18, 19 passes through a perforated plate 8 and flows upward. Comparatively heavier fine particle fragments of the milled noncombustible material fall against air current passing through small sieve holes 8a into the compartment 18. Comparatively heavier fine fragments not passing through the small sieve hole 8a fall against air current passing through large sieve holes 8b into the section chamber 19. In that process, comparatively lighter fragments which are combustible material included in noncombustible material move on the perforated plate 8 while floating and are recovered without passing through each sieve hole. Light fine fragments which are combustible material are sucked from exhaust ports 29, 30 by operating a fan 32 and recovered by a collector 33 through a duct 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to oversized waste such as refrigerators, washing machines, televisions, furniture, mattresses, and guttans, and general waste such as bottles, glass, cans, and pottery, and construction waste materials. The present invention relates to an apparatus for selecting crushed incombustible materials in crushed crushed waste after crushing solid waste.

[0002]

2. Description of the Related Art Conventionally, various types of equipment have been proposed which incorporates a wind sorter, a rotary sieve, a vibrating sieve, etc., as equipment for crushing solid waste such as municipal waste and then sorting the crushed crushed waste by type. ing. As one of them, Japanese Patent Publication Sho-56-45
The thing disclosed by the 660 gazette can be mentioned.
This is made of paper such as municipal waste, kitchen waste, plastic,
After crushing solid waste containing rubber, metal, glass, stones, earth and sand, etc. with a crusher (not shown), send the crushed waste to a magnetic separator to remove iron, and then crushed waste from which iron has been removed Is processed by the illustrated cascade sorter. That is, a trough a which forms a body supported by a vibration-proof rubber c is provided on a base b, and an upper cascade plate d and a lower cascade plate e are arranged above the trough a. Vibration is applied in the direction of the arrow by the vibration mechanism f attached to the bottom surface of the trough a. Then, the crushed waste is supplied from the hopper k onto the upper cascade plate d. On the cascade plate d, the heavy object slides down on the cascade plate d due to the exciting force in the vibration direction,
It reaches the lower cascade plate e, slides down again, and falls to the bottom of the trough. On the other hand, the lightweight object moves forward while being bounced up on the upper cascade plate d and at the same time on the lower cascade plate e, and the lightweight object discharge port 1 and the middle outlet provided at the upper rear end of the trough. It is discharged from the quantity discharge port m.

Residual iron with a mixture of medium amounts including kitchen waste, hard plastic, organic combustibles such as rubber and wood chips,
Heavy materials including non-ferrous metals such as aluminum, stones, earth and sand, glass and other non-combustibles fall to the bottom of the trough, are transferred by vibration, and are discharged from the lower discharge port provided near the bottom of the rear end of the trough. .. This lower discharge port has two left and right passages h and i formed by a partition plate at the bottom of the trough. The medium discharge port n and the heavy load discharge port for discharging dust corresponding to the respective passages h and i. p is provided near the bottom of the rear end of the trough.
Therefore, the medium-weight material mixed with the heavy material that slides down on the inclined guide plate g from the plate surface of the lower cascade plate e enters the other passage h by the air flow jetted horizontally or downward from the air nozzle j via the blower q. It is blown and separated into heavy and medium-weight substances, and is discharged from the respective discharge ports p and n.

[0004]

However, since the ones that slide down on the inclined guide plate g are generally heavy objects, in order to sort out the medium-sized objects by the air flow ejected from the air nozzle j, the classification is performed. It ’s difficult to set points,
Therefore, there is a problem that a heavy substance (incombustible substance) cannot be said to have a high purity because it is inevitable that a medium amount substance (combustible substance) remains therein.

The present invention has been made in order to improve the above problems, and is capable of reliably removing combustibles from crushed incombustibles and greatly improving the purity of the incombustibles. It is intended to provide.

[0006]

In order to achieve the above-mentioned object, a crushable incombustible material sorting apparatus of the present invention comprises a horizontally long box-shaped main body having a supply port at one end and a discharge port at the other end, and the box-shaped body. A vibrating screen having a substantially horizontal perforated plate that divides the box-shaped body into upper and lower parts and a vibrating means that vibrates the box-shaped body in an oblique direction in the main body. A large number of small sieve holes and two large and small sieve holes of a large number of large sieve holes are formed on the discharge side, and a partition wall is formed below each of the sieve holes by a partition wall. An exhaust port and an air supply port are provided, an exhaust port is provided above each of the sieve holes, and a collector and an exhaust fan are connected to the exhaust port via a conduit.

[0007]

[Function] The crushed incombustible material is charged into the vibrating screen through the supply port. The crushed incombustible material that has been introduced moves to the outlet side while vibrating on the perforated plate by the vibrating means. On the other hand, air is supplied from the air supply port into each compartment, and is made to flow above each perforated plate through each sieve hole. As a result, among the crushed incombustibles, the relatively heavy fine particles fall against the air flow passing through the small sieve holes, pass through the small sieve holes, fall into the compartment, and are recovered from the undersize discharge port. Then, the crushed incombustibles that have not passed through the small sieve holes move to the large sieve holes. Here, the relatively heavy piece passes through the large sieve hole, falls into the compartment chamber against the air flow passing through the large sieve hole as described above, and is discharged from the undersize discharge port.

[0008] In the above process, due to the air flowing in through each of the sieve holes, a relatively small piece of combustible material such as wood pieces and plastic pieces mixed in the incombustible material floats up without passing through each sieve hole. While moving on the perforated plate, it is collected from the discharge port. In addition, light strips such as vinyl and plastic are separated and floated from relatively heavy fine grains and strips, and are sucked from the exhaust port along with dust by the operation of the air blower and collected by the collector through the conduit. Of. As mentioned above,
The crushed incombustibles are sorted on the perforated plate into fine-grained sands, pebbles of flakes and combustibles on the perforated plate, and are reliably separated into light combustibles by wind force. ..

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a crushed material conveying conveyor, 2 is a sieve hole diameter of 20 to
A rotary sieving machine set to about 30 m / m, 3 is a quantitative feeder and 4 is a vibrating screen combined with wind force. The vibrating screen 4
Is a substantially horizontal and horizontally long box-shaped main body 5 having a supply port 6 at one upper end and a discharge port 7 at the other lower end, and in the box-shaped main body 5,
A substantially horizontal perforated plate 8 provided so as to divide the box-shaped body 5 into upper and lower parts, and a vibrating means 9 for vibrating the box-shaped body 5 in an oblique direction.
It consists of The box-shaped main body 5 is mounted on a machine base 12 mounted on a base 10 via a spring 11, and a rocking lever 14 obliquely provided between them and a spring 15 provided at a right angle to the rocking lever 14. It is supported by. The vibrating means 9 is the vibrating section 1 provided between the box-shaped body 5 and the support base 13.
6 and a motor 17 provided on the machine base 12, and by driving the motor 17, the box-shaped main body 5 is vibrated in an oblique direction (arrow direction in the figure) via the vibrating portion 16. The porous plate 8 has a large number of small sieve holes 8a on the supply port 6 side and a large sieve hole 8b on the discharge port 7 side.
Is provided. The diameter of the small sieve hole 8a is about 5
8 m / m, and the diameter of the large sieve hole 8b is set to about 20 to 30 m / m. The perforated plate 8 can be replaced with a wire mesh.

Reference numerals 18 and 19 denote compartments formed in the lower part of the perforated plate 8 of the box-shaped main body 5 by a partition wall 20 so as to be divided into a small sieve hole 8a side and a large sieve hole 8b side. 7
Underside sieve discharge ports 21 and 22 are provided on the respective sides, and air supply ports 23 and 24 are provided. Then, a blower 25 is connected to the air supply ports 23 and 24 via a pipe 26,
Air from the blower 25 is supplied to the compartments 18 and 19.
Reference numerals 27 and 28 are control valves provided in the pipe 26. This valve controls the amount of air supplied to each compartment 18, 19. In addition, the passage speed of the air passing through the small sieve hole 8a is 5 to
10m, the passing speed of the air passing through the large sieve hole 8b is 10 to 30
Set to m. 29 and 30 are small and large sieve holes 8a of the perforated plate 8,
An exhaust port provided on the upper wall of the box-shaped main body 5 facing 8b is connected to an exhaust fan 32 via a conduit 31, and a collector 33 such as a cyclone is provided in the conduit 31.

In the above structure, the crushed material crushed by the solid waste crusher (not shown) is conveyed by the conveyor 1 and put into the rotary sieving machine 2 or the vibrating sieve. In this case, the metals contained in the crushed material are removed by a magnetic separator or the like not shown. The charged crushed material is screened into combustible material on the sieve and crushed incombustible material below the sieve. The combustibles that have been sieved are recovered as they are, and the crushed incombustibles are introduced into the combined wind force type vibrating sieve 5 from the supply port 6 through the quantitative feeder 3. The crushed incombustibles that have been introduced move to the discharge port 7 side while vibrating on the perforated plate 8 due to the vibration of the vibrating means 9, that is, the vibration of the vibrating portion 16 upon activation of the motor 17. On the other hand, the air from the blower 25 is supplied into the compartments 18 and 19 from the air supply ports 23 and 24 through the pipe 26. The air in the compartments 18, 19 flows through the sieve holes 8a, 8b of the perforated plate 8 to the upper side of the perforated plate 8. As a result, the relatively heavy fine particles of the crushed incombustibles fall into the compartment 18 through the small sieve holes 8a against the relatively low-speed air flow passing through the small sieve holes 8a, and the sieved matter It is collected from the outlet 21. Then, the crushed incombustibles that have not passed through the small sieve holes 8a move to the large sieve holes 8b by the vibration of the perforated plate 8. Here, the relatively heavy strips fall into the compartment 19 through the large sieve hole 8b against the relatively high-speed air flow passing through the large sieve hole 8b as described above, and the undersize discharge port It is discharged from 22.

In the above process, due to the air flow blown upward from the sieve holes 8a, 8b, relatively light small pieces which are combustible substances such as wood pieces and plastic pieces mixed in the crushed incombustible material are crushed in the respective sieve holes. It moves on the perforated plate 8 while levitating without passing through 8a and 8b, and is collected from the discharge port 7. In addition, light strips such as vinyl and plastics are separated and floated from the relatively heavy fine grains and strips, and are sucked together with dust from the exhaust ports 29 and 30 by the operation of the air blower 32, and the conduit 3
It is collected by the collector 33 through 1. As described above, the crushed incombustibles are caused by the vibration of the porous plate 8 and the sieve holes 8a, 8b.
By the synergistic action with the air flow passing through, it is surely sieved into fine sand particles, small stone particles and combustible materials on the perforated plate 8, and a light combustible material is secured by the suction wind force. It is sorted into.

[0013]

Since the present invention is constructed as described above, it has the following effects. On the perforated plate, a large number of small sieve holes are formed on the supply port side and a large number of large sieve holes on the discharge port side. Two large and small sieve holes are formed, and a partition wall is formed below each of the sieve holes by a partition wall. In each compartment, an under-sieve discharge port and an air supply port are provided, and an exhaust port is provided at the upper part of each sieve hole, and a collector and a blower are connected to the exhaust port via a conduit. By virtue of the synergistic action of the vibration of the perforated plate and the air flow flowing in from each sieve hole, the crushed incombustibles are reliably sieved to the sand-like particles of fine particles, the pebbles of fine particles and the combustibles on the perforated plate. In addition, it is possible to separate light combustibles by suction wind force. Therefore, sand and pebbles are extremely pure and contain almost no combustible substances (organic substances), and can be used for stable landfill from conventional controlled disposal, thus extending the life of the disposal site. At the same time, the disposal cost will decrease. In addition, it can be effectively used for backfilling of roadbed materials and land reclamation materials.

Further, the inflow velocity of air from each sieve hole can be controlled to effectively remove combustibles and relatively light particles (combustibles) on the perforated plate.

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of a waste sorting facility including a crushed incombustible matter sorting apparatus of the present invention.

FIG. 2 shows a conventional example, (A) is a schematic vertical sectional front view,
(B) A schematic vertical sectional side view.

[Explanation of symbols]

 4 Combined use of wind force Vibrating sieve 5 Box-shaped main body 6 Supply port 7 Discharge port 8 Perforated plate 8a Small sieve hole 8b Large sieve hole 9 Vibrating means 18,19 Divided chamber 20 Partition wall 21,22 Under sieve discharge port 23,24 Air Supply port 29,30 Exhaust port 31 Conduit 32 Exhaust fan 33 Collector

Front page continued (72) Inventor Takio Sumitani 1-12-19 Kitahorie, Nishi-ku, Osaka City, Osaka Prefecture Kurimoto Iron Works Co., Ltd. Denki Co., Ltd. Toyohashi Works

Claims (1)

[Claims] 1. A horizontally long box-shaped main body having a supply port at one end and a discharge port at the other end, a substantially horizontal perforated plate that vertically divides the box-shaped main body, and the box-shaped body. A vibrating screen having a vibrating means for vibrating the main body in an oblique direction, wherein the perforated plate has a large number of small screen holes on the supply port side and a large number of large screen holes on the discharge port side. At the bottom of each sieve hole,
A partition wall forms each compartment, each subcompartment is provided with an under-sieve discharge port and an air supply port, an exhaust port is provided above each sieve hole, and the exhaust port collects the gas through a conduit. A crushed incombustibles sorting device characterized by connecting an air blower and a blower.