Production device and process for bottle flake recovery, granulation and reutilization

Abstract

The invention relates to the technical field of bottle flake recovery, granulation and reutilization, in particular to a production device and process for bottle flake recovery, granulation and reutilization. The production device is sequentially provided with an eddy current separator and a material separator, and a screw extrusion granulating device respectively communicates with material mixingbin devices through material pipelines. The production process mainly comprises the steps of screening and sorting bottle flakes to remove impurities, then carrying out preheating, heating and dryingand melt granulation, and finally, uniformly mixing cut granules and outputting the granules. The production device and process are characterized in that the fineness degree is high, the defects of high cost, low quality and low output of an existing production system are shielded, and the batch output is greatly improved by means of the process for bottle flake recovery and granulation to facilitate the downstream use; and the cut granules produced by the device and the process can be used for producing downstream high-end products and even food-grade products.

Description

technical field [0001] The invention relates to the technical field of recycling, granulating and reusing bottle flakes, in particular to a production device and process for recycling, granulating and reusing bottle flakes. Background technique [0002] The existing bottle flake recycling and granulation process varies from manufacturer to manufacturer. The existing process equipment is to process the recycled bottle flakes through primary selection, crushing, cleaning, drying or drying, and then directly enter the screw extruder for melting and granulation. In the above technology, the bottle flakes directly entering the screw extruder are generally 3A standard bottle flakes, but there are still relatively high residues in the bottle flakes, which affect the downstream granulation and the performance indicators of products in various stages. In addition, the process equipment does not have high requirements on the quality of pelletizing, and most of the products produced by...

AI Technical Summary

Problems solved by technology

[0002] The existing bottle flake recycling and granulation process varies from manufacturer to manufacturer. The existing process equipment is to process the recycled bottle flakes through primary selection, crushing, cleaning, drying or drying, and then directly enter the screw extruder for melting and granulation. In the above technology, the bottle flakes directly entering the screw extruder are generally 3A standard bottle flakes, but there are still relatively high residues in the bottle flakes, which affect the downstream granulation and the performance indicators of products in various stages. In addition, the process equipment does not have high requirements on the quality of granulation, and most of the products produced by the process can only be used to manufacture low-end products

[0003] In addition, the existing batch production of bottle flake recycling and granulation process is not large, generally ranging from a few tons to 40 tons per batch, which cannot provide stable quality and stable batch materials for downstream customers, which has caused great harm to the stable use of downstream customers. big inconvenience

[0004] In general, the existing process equipment mainly has the following problems. First, the obtained bottle flakes and pellets have low performance indicators and low quality; second, the weight of pellets obtained from different batches varies, and there is no stable supply of large batches. ; The third is that the various parameters of the granulation obtained by different batches will be different. Due to this difference, the performance indicators of downstream products will be unstable, discontinuous, inconsistent, or even substandard, such as when they are provided to downstream filaments. , there will be hair and broken threads, which will lead to difficult dyeing and uneven dyeing when dyeing.

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