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A kind of waste plastic recycling processing method
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A processing method and technology of waste plastics, applied in the direction of plastic recycling, recycling technology, etc., can solve the problems of low purity of plastic recycling, low production efficiency, and simple processing equipment, so as to save sorting work, high production efficiency, The effect of high screening efficiency
Inactive Publication Date: 2018-05-22
万年县金兔裕发实业有限公司
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Problems solved by technology
In the traditional mineral water bottle recycling technology, due to the crude processing equipment and rough processing methods, not only the production efficiency is low, but also the purity of plastic recycling is not high, and secondary purification is required before it can be put into production
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Embodiment 1
[0030] Such as Figure 1 to Figure 3 Shown, a kind of waste plastic recycling processing method comprises the following steps:
[0031] A. Crushing, sending waste mineral water bottles and waste carbonated beverage bottles into the crusher to break to obtain plastic fragments;
[0032] B. For the first rinsing and screening, put the plastic fragments obtained in step A into the screw propeller for the first rinsing and screening to remove floating objects such as sediment and bottle caps;
[0033] C, the first dehydration and winnowing, put the plastic fragments obtained through step B into the drying machine for the first dehydration and carry out upward winnowing simultaneously, to select plastic fragments with low water content;
[0034] D, high-temperature cooking, high-temperature cooking the plastic fragments obtained through step C, adding caustic soda to the high-temperature cooking solution, the temperature of the high-temperature cooking solution is 65-75 ° C, to re...
Embodiment 2
[0042] A method for recycling and processing waste plastics, comprising the following steps:
[0043] A. Crushing, sending waste mineral water bottles and waste carbonated beverage bottles into the crusher to break to obtain plastic fragments;
[0044] B. For the first rinsing and screening, put the plastic fragments obtained in step A into the screw propeller for the first rinsing and screening to remove floating objects such as sediment and bottle caps;
[0045] C, the first dehydration and winnowing, put the plastic fragments obtained through step B into the drying machine for the first dehydration and carry out upward winnowing simultaneously, to select plastic fragments with low water content;
[0046]D, high-temperature cooking, high-temperature cooking the plastic fragments obtained through step C, adding caustic soda to the high-temperature cooking solution, the temperature of the high-temperature cooking solution is 75-85 ° C, to remove the stickiness of the label on ...
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Abstract
The invention discloses a waste plastic recovery processing method. The waste plastic recovery processing method comprises the following steps that A, crushing is conducted; B, primary rinsing and screening are conducted, and specifically plastic fragments obtained through the step A are placed into a spiral pusher to be rinsed and screened for the first time; C, primary dewatering and winnowing are conducted, specifically the plastic fragments obtained through the step B are placed into a spin dryer to be dewatered for the first time, and upward winnowing is conducted synchronously; D, high-temperature steaming is conducted, and the plastic fragments obtained through the step C are steamed at a high temperature; E, secondary rinsing and screening are conducted, and specifically the plastic fragments obtained through the step D are placed into the spiral pusher to be rinsed and screened for the second time; F, rinsing is conducted for the third time, and specifically the plastic fragments obtained through the step E are rinsed for the third time; and G, secondary dewatering is conducted, and specifically the plastic fragments obtained through the step F are dewatered. According to the waste plastic recovery processing method, the purity of the recovered plastic fragments is high, the plastic fragment can be directly fused and wiredrawn after being recovered, secondary purification is not needed, and the production efficiency is high.
Description
technical field [0001] The invention relates to a method for recycling and processing waste plastics. Background technique [0002] Recycling of waste plastic bottles is a requirement of environmental protection. Plastic bottles with higher recycling value now mainly include mineral water bottles and carbonated beverage bottles. The main material of mineral water bottles and carbonated beverage bottles is PET (polyethylene terephthalate), also known as polyester resin. The material of the bottle cap is PE (polyethylene) or PP (high polymer polypropylene), and the PE cap and PP cap are non-sinkable caps. [0003] In the process of recycling plastic bottles, in order to improve the purity of plastic bottles, not only labels, glue and beverage residues must be removed, but also impurities such as bottle caps and sediment must be removed. In the traditional mineral water bottle recycling technology, due to the crude processing equipment and rough processing methods, not only ...
Claims
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Application Information
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