Optimum water pulsation of jig separation for crushed plastic particles
Optimum water pulsation of jig separation for crushed plastic particles
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DOI：
10.1016/j.minpro.2009.01.001
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发表时间：
2009-08-01
影响因子：
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通讯作者：
Ito, Mayumi
中科院分区：
文献类型：
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作者：
Hori, Kunihiro;Tsunekawa, Masami;Ito, Mayumi
在规划和建设报废办公和家用电器回收工厂时，应对不同塑料进行机械分离。作者研究了使用 TACUB 夹具对小塑料颗粒（两种类型的阻燃聚乙烯 (PE) 和聚氯乙烯 (PVC)）进行夹具分离。颗粒尺寸为0.5-3毫米，两种PE和PVC的比重分别约为1.1、1.3和1.4。在各种水脉动下进行了跳汰机分离实验，脉动的幅度、频率和模式各不相同。根据对分离进度和水脉动的观察，发现脉动的上游速度是高效形成高质量PE和PVC产品层的一个非常重要的因素。颗粒床的适度流化导致了高分离性能。高档PE、PVC制品在小频率、小振幅的脉动下回收率达99.8%以上。通过测量分离室中塑料床的流动性可以轻松确定最佳分离条件。 (C) 2009 年，Elsevier B.V. 出版
Mechanical separation of different plastics should be established in planning and constructing a recycling plant for scrapped office and home appliances. The authors studied jig separation of small plastic particles (two types of burn-resistant polyethylene (PE) and polyvinyl chloride (PVC)) using a TACUB jig. The size of the particles was 0.5-3 mm and the specific gravities of the two PEs and PVC were about 1.1, 1.3 and 1.4, respectively. The jig separation experiments were carried out under various water pulsations, at which the amplitude, frequency, and pattern of pulsation were varied.Based on the observation of separation progress and water pulsation, it was found that the upstream velocity of the pulsation is a very important factor to form high grade PE and PVC product layers with high efficiency. Moderate fluidization of particle bed caused high separation performance. High-grade PE and PVC products over 99.8% were recovered under pulsations of small frequency and amplitude. The optimum separation condition was determined easily by measuring the fluidity of the plastic beds in the separation chamber. (C) 2009 Published by Elsevier B.V.