Extrusion Asia Edition 1-2016

the material to be recycled, either a shredder or

a cutting mill can be used to guarantee good

dosing properties of the output material. This

very light material is then either directly fed to

the MRS Extruder by means of feeding compo-

nents (stuffing screw) or a further processing

step takes place for compacting the material

before it is fed to the extruder. Even fiber

coated with spin finish oils and other contami-

nants and with a high residual moisture level

can be fed directly into the extruder without

any pre-treatment. The material is plasticized,

devolatilized and decontaminated in the extru-

der. Volatiles such as water or spin finish oils

are extracted. Even when different moistures

are employed the material’s intrinsic viscosity (IV) is very consis-

tent. The advantages of Gneuss industrial waste recycling:

• Devolatilization of oils, odors and other volatiles; • Stable IV

even when processing materials with varying residual moisture

levels; • High transparency, low yellowness; • Controlled, con-

sistent viscosity; • Highest melt purity; • LNO for food contact

use from the FDA for 100 % post-consumer recycled content;

• Major energy savings.

A significant element of Gneuss industrial waste recycling is the

modular set-up of the individual components, combined with

the innovative MRS extruder. With its very efficient devolatilisa-

tion performance thanks to the huge surface area renewal rate

in the multi rotation section the MRS extruder processes recy-

cled material to a final product without compromising quality.

More than 50 MRS extruders of all sizes, from the MRS 35 for

35 kg/h to the MRS 200 for 2000 kg/h, are now successfully in

operation world-wide, mainly in sheet, fiber and repelletizing

applications. The MRS extrusion technology is now established

as one of the key technologies for processing PET reclaim with-

out pre-drying. Thanks to the patented combination of single

screw extruder with a multiple screw section, the extruder is

very sturdy and particularly well suited for recycling applica-

tions. Gneuss will show the latest generation of its innovative

Multi Rotation System extrusion technology at Chinaplas.

Depending on the feed product and the requirements profile,

the "shredding", "compacting" and "extruding" segments are

brought together to form an industrial waste recycling system,

and the respective most optimum system solution is achieved

for the user. The advantages of the modular design are obvio-

us: The optimum process for feeding into the extruder is selec-

ted for every type of waste produced. The MRS removes moi-

sture, spinning oils or other adhering volatile components and

solid contaminants are removed in the subsequent filtration,

with the result that the melt produced comes close to having

the properties of new product. When processing recyclates, fil-

tration is an important element for ensuring quality and econo-

my. The Gneuss rotary filtration systems work fully automatical-

ly, with constant pressures and processes, and guarantee a pure

and high-quality melt. Gneuss will exhibit a self-cleaning, pro-

cess-constant and pressure-constant Rotary Filtration System

RSFgenius 75 at Chinaplas.

Chinaplas 2016: Stand E1F15

MRS挤出系统，含多螺杆挤出机，RSFgenius旋转过滤系统和

VIS在线粘度测试仪

MRS extrusion system with Multi Rotation Extruder MRS, Ro-

tary Filtration System RSFgenius, Online Viscometer VIS

(Image: Gneuß)

。即使被纺丝油或其他污染物包裹的废丝和带有高含水量水

平的都可以被直接添加到挤出机中而不需要任何预先的处理

。原料在挤出机中被塑化，排气和去除污染杂质。挥发物如

水或纺丝油被抽取出来，即使不同的含水量也可以保证出料

的原始粘度是一致的。格诺斯工业回收技术的优点：

• 去除油，异味和其他挥发物

• 即使加工不同含水量的物料可得到稳定的IV

• 高透明性，低黄度

• 受控和稳定的粘度

• 高熔体纯度通过FDA 论证的食品级LNO许可，可使用

100%消费前物料回收

• 巨大的能量节省

格诺斯工业回收技术的一个明显的元素就是单独元件的

模块化设计，结合在创新的MRS 挤出机上。通过在多螺杆段

巨大的交换面积而产生的非常高效的排气效果， MRS挤出机

可加工回收料直接到最终制品而不会降低产品质量。目前，

所有型号的诺斯多螺杆挤出机，从产量35公斤/小时的MRS35

到2000公斤/小时的MRS200都在全世界范围内成功运转，主

要应用领域是片材，纤维和造粒。格诺斯MRS多螺杆挤出机

已成为了PET瓶片加工中一项关键技术，无需预干燥和预结

晶.在传统的单螺杆技术的基础上结合了行星单螺杆，整个系

统非常坚固尤其适合于回收加工系统。格诺斯将会在展会上

展出最新一代创新MRS 多螺杆挤出系统。取决于加入物料和

不同的要求， “粉碎”，“压缩”和“挤出”单元被引入并形成工业

废料回收系统，并针对不同的客户进行了优化。模板化设计

的优点是明显的：可对不同类型的废料选择最佳的喂料加工

方式。MRS去除了水分，纺丝油或其他挥发物，并通过持续

的过滤去除了其他硬质污染。在加工回收过程中，过滤是确

保质量和经济性的非常关键的因素。格诺斯旋转过滤系统可

以全自动化操作，压力和加工稳定，并可保证得到纯洁和高

质量的熔体。在展会上格诺斯将会展出自清洗，压力和加工

稳定的旋转过滤系统RSFgenius75 .

Extrusion Asia Edition 1/2016

Gneuss Kunststofftechnik GmbH

Moenichhusen 42, 32549 Bad Oeynhausen, Germany