JPS60127111A - Chopping treater of scrap plastic film - 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] Unreleased film is mainly used for recycling of vinyl chloride film, which is used in vinyl greenhouses for cultivation and seedling raising, or is discarded after being used for general household or industrial purposes. The present invention relates to a fragmentation processing apparatus.

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

The purpose 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 hopper into which the above-mentioned film comes out from the hopper. a compression device for solidifying
It consists of a shredding device using ultra-high pressure water that shreds the solidified film, a washing tank that washes the shredded film pieces, and a transfer device that collects the washed film pieces and sends them to the next processing step. It is characterized by

A detailed explanation of the structure of the embodiment shown in the drawings is as follows:
1 is a hopper installed at a high place, and 2 is a conveyor for conveying the film blocks F, which are carried in properly in bulk while still being dirty, to the hopper 1, and an arm elevator can be used. A pair of left and right C17-
5, 5A and 5B are attached.

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

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 faces the middle of the upper and lower compression rollers 3A and 3B and 30-30. 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.

-j Two feed rollers 5A and 5B, upper compression roller 3A
・3B and lower compression roller 3Cφ3D are nozzle 4B
synchronously rotate in the same direction according to the movement of.

A wide cleaning tank 7 is arranged below the lower compression rollers 3C and 3D, and the compression rollers 3C-3D are offset to one end of the cleaning tank 7. A net 8 is placed slightly below the water surface of the washing 41!7 to prevent the fragmented film pieces from sinking. The cleaning water supply pipe 9 opens at the edge of the sliding door on the side of the compression rollers 3C and 3p,
The structure is such that a constant flow is generated in the tank 7 so that it is ejected and overflows 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 placed under the overflow roller 11 of the cleaning tank 7.
However, a water receiving tank 13 is further arranged below it.

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

The film mass F in the hopper 1 is arranged from the bottom to the rollers 5A and 5A.
5B and sent to the compression device 3, where they are firmly compressed by upper rollers 3A, 3B and lower roller 3Cφ3D.

Ultra-high pressure water is sprayed from the nozzle 4B onto the film solidified in the compression device 3, and the film is
Cut into 500+sm strips.

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 on the flow toward the overflow roller 11 on the net 8. Due to the contact with the netting 8, dirt, dried grass, and other impurities adhering to the film piece f are scraped off. The above-mentioned impurities that have fallen from the film piece f are precipitated and discharged together with the waste water through the pipe lO.

The washed film piece f together with the overflowing water is 1
111 onto the net conveyor 12, and the water is received in a tank 13 thereon.

The film pieces f drained by the net conveyor 127 are transferred to, for example, the hour wheel 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 shredding processing apparatus of the present invention solidifies the suitably gathered film mass F in the compression device 3, and then shreds it in the shredding device 4 using ultra-high pressure water j)
Therefore, 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 drawings]

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 is a shredding device, 7 is a washing tank, 8 is a screen, 12 is a transfer device, F is a film mass, and f is a film piece. Patent applicant: Suda Seisakusho Co., Ltd.

Claims (1)

[Claims] (1) A hopper into which waste plastic film is input, a compression device that solidifies the film that comes out of the hopper, a shredding device that uses ultra-high pressure water to shred the solidified film, and a water wash for the shredded film pieces. A waste plastic film fragmentation processing apparatus comprising a washing tank for washing, and a transfer device for collecting the washed film pieces and sending them to the next processing step.