METHOD FOR WASTE EPS RECYCLING
    9.
    发明申请
    METHOD FOR WASTE EPS RECYCLING 审中-公开
    废纸EPS回收的方法

    公开(公告)号:WO2010071336A2

    公开(公告)日:2010-06-24

    申请号:PCT/KR2009007484

    申请日:2009-12-15

    Inventor: KIM KYEONG-SOO

    Abstract: The present invention relates to a method for waste EPS recycling and equipment for same. The recycling method comprises a solvent preparation step wherein a solution containing dimethyl glutarate with concentration of 60% or higher, dimethyl adipate with concentration of 10-30%, and dimethyl succinate with a concentration of 10-30%; a step wherein waste EPS is crushed; a step wherein the crushed EPS is dissolved and air and PS are separated; a step wherein the separated PS is cooled and gelled; a step wherein the gelled PS is placed in water to remove any solvent remaining in PS; a step wherein the washed PS is pressed; a step in which the pressed PS is extruded; a step wherein secondary residual solvent is removed from the extruded PS; and a step wherein cut PS is dried. The solvent is heated at 30-70°C in order for said EPS to undergo smooth dissolution in said solvent, said dissolved PS is cooled to between -10°C and 10°C for gelation; said gelled PS is placed into water to wash off solvent remaining in the PS, washing water and the solvent generated following water washing are separated based on their different specific gravities to reuse the solvent and water, and the PS extruded from the step for extruding said PS is immediately placed in water and washed, and the solvent and water generated by such washing are separated by the centrifugal separation method based on their differences in the specific gravity and then reused. The apparatus used for this, for example, comprises an addition device (5) that is installed inside a vehicle and accommodates waste EPS, a crushing device (1) that is installed inside the addition device (5) and has a crushing blade (8), a solvent tank (2) that accommodates waste EPS crushed in the crushing device (1) and contains a solvent used to dissolve the waste EPS, and an agitator (3) that is installed inside the solvent tank (2) and agitates waste EPS with a motor (6).

    Abstract translation: 废物EPS回收方法及其设备 回收方法包括溶剂制备步骤,其中包含浓度为60%或更高的戊二酸二甲酯,浓度为10-30%的己二酸二甲酯和浓度为10-30%的琥珀酸二甲酯的溶液; 废物EPS被压碎的步骤; 破碎的EPS被溶解并且空气和PS被分离的步骤; 分离的PS冷却并凝胶的步骤; 将凝胶化的PS置于水中以除去残留在PS中的任何溶剂的步骤; 压制清洗过的PS的步骤; 挤压PS挤出的步骤; 从挤出的PS中除去二次残留溶剂的步骤; 和切割PS干燥的步骤。 将溶剂在30-70℃加热以使所述EPS在所述溶剂中平稳溶解,将所述溶解的PS冷却至-10℃至10℃之间用于凝胶化; 将所述凝胶状PS放入水中以洗掉残留在PS中的溶剂,根据洗涤水和水洗后产生的溶剂根据其不同的比重分离以重新使用溶剂和水,从所述挤出步骤挤出的PS PS立即置于水中并洗涤,并且通过这种洗涤产生的溶剂和水根据其比重差异通过离心分离方法分离,然后重新使用。 为此所使用的设备例如包括安装在车辆内部并容纳废弃EPS的添加装置(5),安装在添加装置(5)内并具有破碎刀片(8)的破碎装置(1) ),容纳在粉碎装置(1)中粉碎的废弃EPS的溶剂罐(2),该溶剂罐含有用于溶解废弃EPS的溶剂,搅拌装置(3)设置在溶剂罐(2)的内部,搅拌废弃物 带电机的EPS(6)。

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