Film shredder

Abstract

The invention discloses a film shredder. The film shredder comprises a rack supporting a rotor. A knife claw is arranged on the outer wall of the rotor. The rotor is sleeved with rollers at intervals. A knife claw is arranged on the inner wall of each roller. A shredding channel is formed between the rotor and the rollers, and a film can be cut oppositely, shredded and conveyed backwards in the shredding channel. The shredding channel is composed of several sub shredding channels. In the conveying direction of the film, the distance between the rotor and the rollers in the later sub shredding channel is smaller than that between the rotor and the rollers in the former adjacent sub shredding channel, and the number of the knife claws in the later sub shredding channel is larger than that of the knife claws in the former adjacent sub shredding channel. A feed port of the shredding channel is communicated with a feed bin, the feed bin is communicated with a material temporary storage box, and a screw conveyer is arranged in the feed bin. A discharge port of the shredding channel is communicated with a discharge bin, a film sorting and recovering mechanism is arranged on the portion, below a discharge port of the discharge bin, of the rack, and an impurity turnover conveyer is arranged in the rack. The film shredder has the advantages of being good in film shredding and sorting effect and high in shredding and sorting efficiency.

Description

technical field [0001] The invention relates to the field of film recovery and regeneration, in particular to a film shredder used for shredding and recycling films. Background technique [0002] Agricultural mulch film is a plastic film widely used in the agricultural field. It is mainly used to cover farmland to increase ground temperature, maintain soil moisture, promote seed germination and rapid growth of seedlings, and inhibit weed growth. Since the agricultural mulch film is made of polyethylene compound and its resin, it is non-perishable and difficult to decompose, so a large amount of waste agricultural mulch film remaining in the soil will destroy the ecological environment of the farmland; and because the agricultural mulch film is a modern economic development It is an important material that can realize "reduction, reuse, and recycling". Its production and processing are processes with no pollution, low consumption, and high efficiency. Most of the agricultural...

AI Technical Summary

Problems solved by technology

The disadvantage of the currently used film shredder is that the film to be shredded is very easy to block and jam due to the large-sized hard impurities contained in the film to be shredded during the feeding and shredding process, and the film shredding effect is poor. , The shredding efficiency is low, the impurities cannot be separated during the shredding process, the installation and maintenance are cumbersome, and the sorting efficiency of the shredded film is low, the impurity content of the sorted and recovered film is high, and the sorting effect is poor

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