JPS6155849B2 - - Google Patents

Abstract

PURPOSE:To obtain a highly efficient low cost treater by a method wherein film delivered from hopper is humped and the resultant compacted film is chopped into pieces by means of ultra-high pressure water and, after that, the film pieces are rinsed and collected in order to be transferred. CONSTITUTION:A lump of film F in a hopper 1 is fed in a compactor 3 in order to be tightly compacted and cut off into pieces by being ejected with ultra-high pressure water from a nozzle 4B. The shredded film pieces (f) fall down in a cleaning tank 7 and shifted on and along a net 8 towards an overflow port 11. The rinsed film pieces (f) fall from the port 11 onto a net conveyer 12 and are drained water therefrom so as to be moved to a boxcar in order to be carried to a trater for reuse. Thus, even film in dirty state can be easily shredded, because lumps of film F are compacted at the compactor 3 and chopped into pieces with ultra-high pressure water at a shredder 4. Further, the rinsing and shifting are efficiently performed, resulting in facilitating the following treatment for reuse, because the chopped film pieces (f) are led in the cleaning tank 7 and rinsed while flowing through the tank 7 and collected to the following transfer device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for reusing vinyl chloride films that are used in greenhouses for cultivation, seedling raising, etc., or are discarded after being used for general household or industrial purposes. The present invention relates to a fragmentation processing device.

Conventionally, a knife is used to shred or crush the waste plastic film into small pieces, but the film is heavily contaminated with dirt, dead leaves, and other impurities, and the knife is easily damaged. Also, because it is flexible, it is difficult to cut and is inefficient, contributing to the soaring cost of recycling.

The object of the present invention is to provide a highly efficient and low-cost processing device that solves the conventional problems of the above-mentioned fragmentation processing, and includes a hopper into which waste plastic film is input, and a processing device for processing the above-mentioned film that comes out from the hopper. A compression device that solidifies the film, a shredding device that uses ultra-high pressure water to shred the solidified film, a washing tank that washes the film pieces into small pieces, and a washing tank that collects the washed film pieces for the next processing step. It is characterized by consisting of a transfer device for sending it to.

To specifically explain the structure of the embodiment shown in the drawings, 1 is a hopper installed at a high place, 2 is a conveyor for conveying the film blocks F, which are brought in in bulk while still being dirty, to the hopper 1, and an arm elevator. is allowed. A pair of left and right rollers 5A, 5 for pulling out the film mass F fed into the lower mouth of the hopper 1 and sending it to the next compression device 3 and shredding device 4.
It has a B.

The compression device 3 is installed directly below the hopper 1, and includes two pairs of left and right compression rollers 3A, 3B, 3.
C and 3D are arranged in two stages, upper and lower.

The shredding device 4 uses a jet of ultra-high pressure water, and the tip of a nozzle 4B connected to the ultra-high pressure water generating device 4A is connected to the upper and lower compression rollers 3A, 3B and 3.
It is placed between C and 3D. The nozzle 4B reciprocates horizontally a certain distance. A water pressure receiving wall 6 is replaceably arranged on the opposite side of the tip of the nozzle 4B.

The feed rollers 5A, 5B, upper compression rollers 3A, 3B, and lower compression rollers 3C, 3D are as follows:
It is synchronously rotated in the same direction in accordance with the movement of the nozzle 4B.

Wide cleaning tank 7 under the lower compression rollers 3C and 3D
are arranged, and the compression rollers 3C and 3D are offset to one end of the cleaning tank 7. A net 8 is placed slightly below the water surface of the cleaning tank 7 to prevent the fragmented film pieces from sinking. The cleaning water supply pipe 9 opens at the edge of the tank on the side of the compression rollers 3C and 3D, and is configured to jet water so as to generate a constant flow within the tank 7 and overflow to the opposite side. The bottom of the cleaning tank 7 is inclined and communicates with a drain pipe 10.

A mesh conveyor 12 is arranged below the overflow port 11 of the cleaning tank 7, and a water receiving tank 13 is arranged further below.

A plastic film block F for waste agriculture carried by a trolley 14 is transferred to an arm elevator 2 and placed into a hopper 1.

The film blocks F in the hopper 1 are sequentially pulled out by rollers 5A and 5B starting from the bottom, and are pulled out by the compression device 3.
and is firmly compressed by upper rollers 3A, 3B and lower rollers 3C, 3D.

Ultrahigh pressure water is sprayed from a nozzle 4B onto the film solidified in the compression device 3, and the film is cut into strips of, for example, 200 x 500 mm.

The film is shredded but still compressed and falls into the cleaning tank 7, where it is immediately loosened by the water flow. The fragmented film pieces f move along the flow on the net 8 toward the overflow port 11. Through contact with the net 8 between them, the film piece f
Sediment, dry grass, and other debris adhering to the surface are scraped off. The above-mentioned foreign matter falling from the film piece f settles and is discharged through the pipe 10 together with the waste water.

The washed film piece f falls from the spout 11 onto the net conveyor 12 together with overflowing water, and the water is received in a tank 13 below.

Film piece f drained on the net conveyor 12
are transferred to, for example, a box car 15 and transported to a processing device for reuse such as the next crushing device or crushing device.

As described above, the waste plastic film fragmentation processing apparatus of the present invention is capable of processing film chunks F that have been appropriately assembled.
Since the film is solidified in the compression device 3 and cut into pieces by the shredding device 4 using ultra-high pressure water, even dirty film can be easily shredded.

Then, the shredded film pieces f are introduced into the washing tank 7, washed with water while flowing in the tank, and collected in the next transfer device, so that washing and transfer are performed efficiently, and the next transfer is carried out efficiently. This has the effect of facilitating reuse processing and reducing costs.

[Brief explanation of the drawing]

The figure is a longitudinal sectional front view of the fragmentation processing apparatus of the present invention. 1 is a hopper, 2 is a conveyor, 3 is a compression device, 4
7 is a shredding device, 7 is a cleaning tank, 8 is a net, 12 is a transfer device, F is a film mass, and f is a film piece.

Claims (1)

[Claims] 1. A hopper into which waste plastic film is input,
A compression device that solidifies the film coming out of the hopper, a shredding device using ultra-high pressure water that shreds the solidified film, a washing tank that washes the film fragments with water, and a washing tank that washes the film fragments after they have been washed. A waste plastic film fragmentation processing device comprising a transfer device that collects and sends it to the next processing step.