CN1030823C - Method and device for separating and recycling waste plastic skins - Google Patents

Abstract

A method and its apparatus for separating and recovering waste plastic leather uses a pulverizer (1), a blower (2), (4), (6), (7), (9), (11), (12), (14), (15), (17), (18), (21), a filter material processor (3), a cotton doffing machine (5), a particle pulverizer (8), separators (10), (16), an electric sieve (13), a plastic material container (19), a cotton fabric collector (20) and a cotton fabric material container (22) to pulverize, separate and recover the waste plastic leather stuck with cotton fabric, so as to obtain the resource for reuse.

Description

Method and device for separating and recycling waste plastic skins

The invention relates to a method and device for separating and recycling waste plastic skins, and also a method for separating, recycling and regenerating plastic skin fragments and the cotton cloth attached to them by a mechanical device.

In the past, the remaining fragments of the plastic leather with a layer of cotton cloth after cutting were discarded by burning or burying, and some were recovered by impregnating the rubber with sulfuric acid. The recovery of sulfuric acid will occur when the burning treatment is used. For the pollution problem, if buried in the ground, there is concern that it will not rot. For the sulfuric acid impregnation recovery method, the plastic skin fragments are immersed in sulfuric acid with a concentration of 20%, so that the cotton cloth is partially rotten, and then the rotten parts are decomposed with water. Wash the cotton cloth and recycle the plastic skin. Although this method can recycle the plastic skin, the sulfuric acid penetrates into the rubber skin, making it extremely difficult to wash off with water. The sulfuric acid remaining in the rubber is quite destructive, not only destroying the texture of the rubber And the color will damage the rubber processing machinery. Secondly, if the sticking material of the plastic skin is not pure cotton cloth but man-made synthetic resin fiber, because the man-made synthetic resin fiber also has acid resistance and is not easy to rot, it will be difficult to impregnate it with sulfuric acid and recycle it. Overcome the shortcomings.

The purpose of the present invention is to solve the shortcomings of the aforementioned sulfuric acid impregnation recovery method, to provide a method for separating the plastic skin and its cotton cloth with mechanical equipment, so that the plastic skin can maintain the original quality and color and be completely recycled, and the separated product Cotton cloth can also be processed and used as a plastic filler.

Accompanying drawing of this description is the mechanical equipment of the present invention and its flow chart explanatory drawing.

Shown according to accompanying drawing now, with regard to the method of the present invention and device thereof, be described in more detail as follows:

Among the figure: (1) is the Crusher (Crusher), (2), (4), (6), (7), (9), (11), (12), (14), (15), ( 17), (18), (21) are Blower, (3) is Filtering Treating Machine, (5) is ClothedSeparateout Machine, (8) is MicroCrusher ), (10), (16) are Separator, (13) is Electric Seive, (19) is PVC Storage Devices, (20) is Clothed Collector ), (22) is a cotton cloth filling machine (Clothed Storage Device).

First, put the plastic skin fragments pasted with cotton cloth into the pulverizer (1) and crush them into fine particles, then send them to the filter material processor (3) with the blower (2) for processing, and then send them to the doffing machine with the blower (4) (5) Separate the cotton cloth from the plastic skin. The cotton cloth separated and removed is sent to the cotton cloth accumulator (20) through the air blower (7), and then sent to the cotton cloth filling machine (22) by the air blower (21) after the cotton cloth is full. The plastic particles separated at this stage must be processed again because the cotton cloth that has been pasted has not been completely removed, and they are sent to the particle grinder (8) by the blower (6) to be crushed into Φ0.4mm——1.5 mm particles, then send it to the separator (10) with the air blower (9) to separate the plastic particles and cotton cloth for the second time.

The separated cotton cloth (yarn) is sent to the cotton cloth accumulator (20) by the air blower (12), and then sent to the cotton cloth filling machine (22) by the air blower (21), and the separated plastic particles are sent to the cotton cloth accumulator (22) by the air blower (11). The double-layer electric sieve (13), the plastic particles with less yarn content obtained through screening are sent to the separator (16) by the air blower (14), and the plastic particles obtained after the remaining cotton cloth (yarn) is separated again are promptly blown by the air blower ( 17) Deliver to plastic material filling machine (19) and recycle. The plastic granules with more yarn content obtained after screening are sent back to the particle pulverizer (8) for re-separation by the air blower (15), and then sent to the separator (10) by the air blower (9) to separate the cotton yarn and plastic particles. After further separation and screening, the final plastic particles can reach a purity of 99%, that is, 99% of the cotton can be removed.

In the aforementioned separation process of plastic skin and cotton cloth, a large amount of cotton cloth has been separated in the cotton doffer, and the remaining cotton cloth (yarn) can be separated for an appropriate number of times in the subsequent separator and screening machine. The recovered plastic particles are then It can be made into rubber again, which is the same as new products in terms of texture, color and use, and the recycled cotton yarn can also be processed and used as plastic fillers. The method and device are unprecedented See, and has industrial use value.

Claims (2)

1. A method for separating and recycling waste plastic skins, which uses pulverizer (1), air blower (2), (4), (6), (7), (9), (11), (12), ( 14), (15), (17), (18), (21), filter material processing machine (3), doffer cloth machine (5), particle pulverizer (8), separator (10), (16) , electric sieve (13), plastic material filling machine (19), cotton cloth accumulator (20) and cotton cloth material filling machine (22) pulverize and separate the plastic skin pasted with cotton cloth (yarn), make the plastic rubber skin and cotton cloth (yarn) Recycled separately, characterized in that: the plastic skin pasted with cotton cloth is first crushed into granules by the pulverizer (1), sent to the filter material processor (3) by the blower (2), and then sent to the cotton-free cloth by the blower (4) The machine (5) removes a large amount of cotton cloth and separates it from the plastic particles, and the separated cotton cloth is sent to the cotton cloth accumulator (20) by the air blower (7), and then sent to the cotton cloth filling machine (22) by the air blower (21); The obtained plastic granules are sent to the particle pulverizer (8) by the air blower (6) to be crushed into particles, and then sent to the separator (10) by the air blower (9), and the plastic micromaterials and cotton cloth are subjected to a second grinding process. separation of The cotton cloth (yarn) separated for the second time is sent to the cotton cloth accumulator (20) by the air blower (12) and then sent to the cotton cloth filling machine (22) by the air blower (21), and the separated plastic particles are sent by the air blower (11) ) to the electric sieve (13), and the screened plastic particles, those with more yarn content, will be sent back to the particle grinder (8) for re-separation by the air blower (15), and the plastic particles with less yarn content will be separated by the air blower (14) Sent to the separator (16) to separate the remaining cotton cloth (yarn) again, the obtained plastic granules are sent to the plastic filling machine (19) by the blower (17) for recycling, and the obtained cotton cloth (yarn) is blown by the blower (18) is delivered to the cotton cloth accumulator (20), and then delivered to the cotton cloth filling machine (22) with the air blower (21). 2. A device for separating and recycling waste plastic skins, which is used to pulverize and separate the plastic skins pasted with cotton cloth (yarn), so that the plastic rubber skins and cotton cloth (yarn) are recycled separately. It includes a pulverizer (1), a blower (2 ), (4), (6), (7), (9), (11), (12), (14), (15), (17), (18), (21), filter material processor (3), doffer (5), particle pulverizer (8), separator (10), (16), electric sieve (13), plastic filling machine (19), cotton cloth collector (20) and cotton cloth The feeder (22) is characterized in that: the outlet of the pulverizer (1) that pulverizes the plastic skin pasted with cotton cloth into granular form is connected with the inlet of the filter material processor (3) through the air blower (2), and the filter material processor The outlet of (3) is connected with the inlet of a cotton doffer (5) that removes a large amount of cotton and separates plastic particles through the blower (4), and the cotton outlet of the doffer (5) passes through the blower (7) and the cotton collector (20 ) inlet connection, the outlet of the cotton cloth accumulator (20) is connected with the inlet of the cotton cloth filling machine (22) by blower fan (21) again; The outlet of the plastic pellets of the doffer (5) is connected to the inlet of the particle pulverizer (8) that pulverizes the plastic pellets into particles through the air blower (6), and the outlet of the particle pulverizer (8) is connected to the plastic pellet mill (8) through the air blower (9). Particles and cotton cloth carry out the inlet connection of the separator (10) that separates for the second time; The cotton cloth (yarn) outlet of the separator (10) is connected with the inlet of the cotton cloth collector (20) through the air blower (12), and the plastic particle outlet of the separator (10) is connected with the inlet of the electric screen (13) through the air blower (11) The outlet of the plastic particle with more yarn content of the electric screen (13) is connected with the inlet of the particle pulverizer (8) through the blower (15) to perform re-separation, and the plastic particle with less yarn content of the electric screen (13) The pellet outlet is connected to the inlet of the separator (16) for re-separating the residual cotton cloth (yarn) through the air blower (14), and the plastic pellet outlet of the separator (16) is connected to the plastic pellet outlet for recycling the plastic pellets through the blower (17). The inlet of plastic material filling machine (19) is connected, and the cotton cloth (yarn) outlet of separator (16) is connected with the inlet of cotton cloth gatherer (20) by air blower (18).