JPH11216424A - Crushed refuse sorting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent linear materials from being caught in sorting holes of a rotary drum to prevent the lowering of sorting performance and the cessation of operation. SOLUTION: A feeding port 33 and a discharging port 34 are formed at one and the other ends of a rotary drum 13 respectively. The rotary drum 13 is disposed, inclined so that the feeding port 33 side is higher than the discharging port 34 side. A lot of sorting holes 43, 44 are made in a shell wall 32 of the rotary drum 13. Linear materials T discharged from the sorting holes 43, 44 by heat knives 51 or high pressure water nozzles are removed from the rotary drum 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting apparatus for crushing bulky and incombustible refuse in a refuse treatment facility and then sorting the crushed refuse in size.

[0002]

2. Description of the Related Art Crushed refuse is mainly classified into small piece incombustibles, medium piece aluminum mixtures and large piece combustibles.
Incombustibles comply with the landfill according to the landfill standards and are disposed of by landfill. Only aluminum is selected from the aluminum mixture and reused as valuable material. The recovery rate of aluminum is 60 to 70% (weight ratio) of aluminum contained in the entire refuse. Combustible materials are transported to waste incineration facilities and incinerated.

Conventionally, this type of apparatus has a rotary drum provided with an inlet at one end and a discharge port at the other end, and the rotary drum is inclined so that the input port is higher than the discharge port. It is known that a rotary drum has a large number of sorting holes formed in a body wall thereof.

[0004]

The crushed refuse contains linear objects. The linear object is, for example, a tape removed from a cassette as a result of crushing a cassette of cassette tapes.

[0005] The above-mentioned linear object may be caught in the sorting hole when passing through the sorting hole. Then,
The sorting holes are clogged and the sorting ability is reduced. Furthermore, if the operation of the sorting device is continued while the linear object is caught in the sorting hole, the linear object will wrap around the outer wall of the body wall, hindering the rotation of the rotating drum, and stopping the operation of the sorting device. I have to.

An object of the present invention is to provide a crushed waste sorting apparatus which can prevent a linear object from being caught in a sorting hole of a rotary drum, and can prevent deterioration in sorting performance and operation stop.

[0007]

According to the present invention, there is provided a crushed waste sorting apparatus according to the present invention, in which an input port is provided at one end of a rotary drum and an output port is provided at the other end, and the rotary drum is rotated so that the input port side is higher than the output port side. In a crushed garbage sorting apparatus in which a drum is inclined and a large number of sorting holes are formed in a body wall of a rotary drum, a crushing waste sorting device is provided with a removing unit that removes linear objects discharged from the sorting holes from the rotating drum. It is characterized by having.

In the crushed refuse sorting apparatus according to the present invention, since the linear material caught in the sorting hole is removed by the removing means, it is possible to prevent the linear material from being caught in the sorting hole and to reduce the sorting performance. Operation stoppage can be prevented.

Further, it is preferable that the rotating drum is housed in a casing, the removing means is a heat knife attached to the casing, and the linear object is a tape taken out of a cassette tape.

[0010] The rotary drum may be housed in a casing, and the removing means may be a high-pressure water nozzle attached to the casing.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

The crushed waste sorting apparatus includes a horizontally long box-shaped casing 12 supported on a gantry 11 in an upwardly inclined shape, a casing 12 housed in the casing 12 and inclined in the same manner as the casing 12, and having both ends. And a rotating drum 13 projecting from the casing 12.

Two rollers 21 are provided at both left and right ends of the gantry 11, and the protruding ends of the rotary drum 13 are supported by these rollers 21.

A small piece collecting hopper 22 is provided on the right side of the bottom wall of the casing 12, and a medium piece collecting hopper 23 is provided on the left side thereof.

The rotary drum 13 has a right end wall 31 and a cylindrical body wall 32. A dust input duct 33 is provided on the right end wall 31. The left end of the body wall 32 is open, and forms a large piece discharge port 34. The large piece discharge port 34 enters into a large piece collection chute 35.

A sorting area is formed in a portion of the body wall 32 inside the casing 12, and is formed by a right-piece sorting area.
It consists of 41 and the middle left sorting area 42. The small piece sorting area 41 is provided with a large number of small piece sorting holes 43 scattered. The small piece selection hole 43 is sized to allow a small piece corresponding to a circle having a diameter of 10 mm to pass therethrough. The left middle piece sorting area 42 is provided with a large number of middle piece sorting holes 44, which are arranged at equal intervals in a line on the circumference of the body wall 32 in four axial directions. The middle piece sorting hole 44 is 100mm ×
It has a square shape with a size of 200 mm.

Heat knives 51 are mounted at appropriate positions on the casing 12 so as to be movable in the radial direction of the rotary drum 13. The heat knife 51 is obtained by incorporating a heating wire heater in a stainless steel knife. The heater heats the knife to a temperature of about 180 degrees, which is suitable for melting the tapes. The three mounting positions are located above, to the left and to the right of the rotary drum 13 when viewed from the axial direction of the rotary drum 13. There are four locations.

When the rotary drum 13 is rotated by crushing the crushed dust D into the rotary drum 13, the small pieces pass through the small piece selection hole 43 and the middle pieces pass through the middle piece selection hole 44, thereby Small pieces and medium pieces are sorted from the garbage. Large pieces that could not pass through small piece sorting hole 43 and medium piece sorting hole 44,
It is discharged from the large piece discharge port 34.

The small pieces are non-combustible materials that comply with the landfill according to the landfill standard. The middle piece contains aluminum.
Large pieces are combustibles that are incinerated.

The tape T which is going to pass through the middle piece selection hole 44 together with the middle piece may be caught on the edge of the middle piece selection hole 44. If the rotation of the rotary drum 13 is continued in this state, the tape T caught on the edge of the intermediate piece selection hole 44 may wind around the body wall 32. The heat knife 51 is used regularly or as needed. When not in use, the heat knife 51 is made to stand by at a position where its tip is separated from the outer surface of the body wall 32. When the heat knife 51 is used, the tip of the heat knife 51 is
The heat knife 51 is moved to a position close to the outer surface.
Then, the tapes wrapped around the outer surface of the body wall 32 are melted and removed by the heat knife 51.

FIG. 3 shows an example in which a high-pressure water nozzle 61 is used instead of the heat knife 51. Water having a pressure of 40 kg / cm 2 or more is jetted from the high-pressure water nozzle.

[0022]

According to the present invention, it is possible to prevent the linear object from being caught in the sorting hole of the rotary drum, and to prevent the sorting performance from deteriorating and stopping the operation.

[Brief description of the drawings]

FIG. 1 is a vertical vertical sectional view of a crushed waste sorting apparatus according to the present invention.

FIG. 2 is a vertical cross-sectional view of the same device.

FIG. 3 is a cross-sectional view showing a modification of the same device and corresponding to FIG. 2;

[Explanation of symbols]

 12 Casing 13 Rotating drum 32 Body wall 33 Input duct 34 Outlet 43 Small piece sorting hole 44 Medium piece sorting hole 51 Heat knife 61 High pressure water nozzle T Tape D Garbage

Claims (3)

[Claims] An input port 33 is provided at one end of the rotary drum 13 and a discharge port 34 is provided at the other end, and the input port 33 side is a discharge port.
The rotary drum 13 is inclined so as to be higher than the side 34, and a large number of sorting holes 43 and 44 are formed in the body wall 32 of the rotating drum 13.
A crushed trash sorter comprising a removing means for removing the linear objects T discharged from the rotary drums from the rotary drum. 2. The rotating drum 13 is housed in the casing 12, the removing means is a heat knife 51 attached to the casing 12, and the linear object T is a tape taken out of a cassette tape cassette. Item 4. A crushed waste sorting apparatus according to Item 1. 3. The crushed waste sorting apparatus according to claim 1, wherein the rotating drum 13 is housed in the casing 12, and the removing means is a high-pressure water nozzle 61 attached to the casing 12.