Shanghai Daoqin Plastics Co., Ltd.

         plastics products various 各样, large small 不一. this products by waste rear, must through 一 手段, will its formed large small small block material material, can recycled processing or 进一步模塑 molding made formed various recycled products. 当然, waste plastics rear also has very more benefits, 如方便 packaging, 运输, 储存, and other.

        1, step/link

        破碎 technology

         from technology principle different separation, basic has 4 types. separation is:

        ① pressure technology

         material material to material material to versus for pressure shrink force function by powder formed small block, it suitable for relatively large waste plastics products, combined soft plastics. its function methods 包括如两 block versus for metal sheet/plate versus pressure function, versus for 旋转辊 碾 pressure function, inner in outer 锥形筒 in as 偏心旋转 挤 pressure function.

        ② 击碎 technology

         material material to outer impact force function by powder 碎, suitable for property material. its function methods for outer hard material 体 打击 function (如 use iron 锤锤击), material material 自身间 and solid hard sheet/plate high speed impact function, material material versus between function.

        ③ abrasion technology

         material material in different 形状研 abrasion between to pressure function by powder formed fine small pellets, suitable for block material material.

        ④ 剪切 technology

         material material in and other device 剪切, 穿刺, and other function lower by formed small block or sheet/slice, suitable for tough property material material, film, sheet/slice and soft products.

         upper 述破碎形式如图1 示——

图1 破碎 basic 形式

        破碎 equipment selection

        破碎 equipment selection main/primary 取决于 by powder material material types type, 形状以 and powder degree. different waste plastics property different, using/adopting equipment can can different.

        如, hard 质PVC, PS, has machine 玻璃, aldehyde resin, aldehyde resin, polyester resin and other material belongs to property plastics, easy 碎, to pressure shrink force or impact force function, easy formed small block, this category of plastics 就适宜 using/adopting pressure shrink or impact powder equipment;而PE, PP, PA and ABS and other normal temperature lower has very good tough property material, 则适宜 using/adopting 剪切式破碎 equipment; for/regarding low temperature property material, soft 质PVC, combined using/adopting low temperature equipment.

        2, step/link

        清洗 process function and classification

         waste plastics in recycling process in, remove production property waste material, injection molding, extrusion processing generate waste 边, waste material, waste product and other can 直接破碎 rear recycling utilizing outer, large more waste plastics 都会因 is to 污染而 need 经 清洗 rear can recycling utilizing. 清洗 目 就 is is remove 杂质, is rear processing 做准备.

         currently, plastics recycling enterprise for waste plastics large using/adopting wet method 进行清洗, 清洗 介质 is water or add agent mixed combined liquid. methods separation is 手工清洗 and machine 械清洗两 types. due to 手工清洗 efficiency low, 手工清洗 use scope/range decrease/reduce, 自动化程 degree high machine 械清洗 already formed is 主流. 随 科技 进步, water technology already 逐渐登 upper 舞台发挥 function.

         waste plastics technology

        ① 间歇式 wet method 清洗

        首先, will waste plastics 放入一 water in 冲洗, use plastics machine remove viscous in plastics surface dispersion 污垢, 如砂子, and other, make 之沉入槽底;若木屑 and sheet/slice very more 时, can in has specialized 泵 沉淀池 in 进一步净化; for/regarding 附 牢 solid 污垢, printing ink, coating has adhesion agent label, can 先人工拣出 relatively large sheet/slice 者, in plastics powder machine powder rear hot alkali water solvent liquid in 浸泡一段 time, rear through machine 械搅拌 make versus abrasion scratch 碰撞, remove material. most rear will rear powder waste plastics 送进离心 machine in dry, 并经两步 hot gas drying 至残留 water separation ≤0.5%.

        ② 连续式 wet method 清洗

         waste plastics 由传送 belt/tape plastics powder machine, coarse powder 碎, rear again to large block separation 离段, will and other water 底, 并定时 by 送走. upper material material 经输送辊入 wet abrasion machine, rear to 沉淀池, has ratio water heavy 东西均 by separation 离出, most micro small pellets 也不例 outer, to most 佳效果.

        ③ bottle sheet/slice hot 洗

         bottle sheet/slice hot 洗包括浮洗 and and other 工序. hot and mono can has remove bottle cover/cap, bottle 圈, in bottle inner and material, external and its it 杂质;漂洗 mono can remove hot rear 残留 药 agent, make bottle sheet/slice surface PH value in property, ensure bottle sheet/slice degree and transparent degree.

        ④ 无 water 清洗

         waste plastics water is for thick degree to dimensions sheet/slice, using/adopting scratch, abrasion, and other material force function, make in thin sheet/slice upper 污垢脱离并 dispersion in gas in, through remove device and separation device remove and separation 离, to dry plastics sheet/slice.

        无 water 清洗没 has waste water generate, 二次污染 large large decrease/reduce, is currently related research focus/key point field/area, its technology, process and equipment 都处于探索 stage/phase.

        3, waste plastics 污染源 classification

         currently, plastics application to 各行各业, formed plastics products and different material 质 接触. waste plastics product types and different, formed 污染也不 same, main/primary has below/following types:

        ① 悬浮 material 污染: waste plastics main/primary or packaging 棉纱, 化纤, 石英砂, water 泥, carbon acid and other;

        ② has machine material 污染: waste plastics main/primary or packaging 粮食, material, material and other;

        ③ 油脂污染: waste plastics main/primary or packaging type material 质;

        ④ solvent understanding material 污染: waste plastics main/primary or packaging chlorine 化钠, pure alkali and other;

        ⑤ color 污染: waste plastics main/primary or packaging material material and other;

        ⑥ PH value 污染: waste plastics main/primary or packaging strong/high acid strong/high alkali property material 质;

        ⑦ micro material 污染: waste plastics main/primary one-time property medical grade device 材;

        ⑧ has material 质污染: waste plastics main/primary or packaging has has material 质.

        5-8 type material has processing enterprise acquisition type waste plastics, this category of waste plastics recycled enterprise need 配备完善 water 处理设施 and good 工人劳动保护, has material rear for has very large 伤害!

        实际 production in main/primary is 1-4 type waste plastics, has has has material 质, rear water can simple rear 排放. simple investment very small, main/primary use method.

        4, 破碎, in 二次污染

         waste plastics powder and processing for ring 境污染十 separation heavy, main/primary performance in waste water, waste gas. in process in generate powder 尘污染, in mixed combined liquid 挥发出 刺激 odor is waste gas generate 根源; waste water main/primary 源于清洗 process in waste water and 污染严 heavy mixed combined liquid.

        一 不 negative responsibility plastics products production enterprise, will process in generate waste water, waste gas, waste material 直接排 toward 附近 居民区, water 田, 河道, for 周边 土壤, water, gas formed heavy 污染. meanwhile heavy effect/influence 人们 生 active and 身体健康.

        此次 environmental protection large 检查, waste plastics industry heavy 创, ultra- 七 formed enterprise can through 审查, by 责令关停整改, large more enterprise is is waste water, waste gas 处理不 to 位.

         waste plastics recycling utilizing is energy saving environmental protection, green industry. 但一味追求利益, process in formed ratio waste plastics also heavy 二次污染, that waste plastics recycling industry 就会失 存 in 意义. from industry enterprise 家们携起手共同抵 made, 拒绝二次污染, make industry and development!

        5, internal separation 破碎清洗 equipment 厂家

        1.广州市联冠 machine has company

        2.格林威尔 machine 械(张家港) has company

        3.江苏贝尔 machine group

        4.埃维恩(Shanghai) machine has company

        5.奥 利埃瑞玛 plastics recycled engineering machine equipment has company

        6.浙江宝绿特 environmental protection technology engineering has company

        7.东莞市利 color plastics products has company

        8.张家港艾斯瑞特 machine has company

        9.江苏联冠 machine has company

        10.张家港海滨 machine has company

        6, internal separation environmental protection equipment 厂家

        1.诸城市广晟 environmental protection equipment has company

        2.山东 water environmental protection engineering has company

        3.杭州建豪 environmental protection equipment has company

        4.广东致顺 chemical industry environmental protection equipment has company