PETpla.net Insider 10 / 2019

TRADE SHOW PREVIEW PET planet Insider Vol. 20 No. 10/19 www.petpla.net 68 Process solutions for the treatment of plastic waste Size reducing, washing, separating, drying and agglomeration The machine and plant manufacturer Herbold Meckesheim GmbH will be presenting tried and tested process solutions for the treatment of plastic waste in Düsseldorf in addition to its wide range of machines. Pre-shredding Pre-shredding is an essential pro- cess step when the feed material is too bulky to process or when it has to be coarsely broken up before sorting, visual inspection, or testing. Herbold uses shredders, granulators, guillo- tines, and hammer mills for pre-crush- ing. For example: EWS 60/210 Shredder The demand for high-performance shredders that can process entire bales is increasing, especially when used in washing lines. Herbold will present the EWS 60/210 for the first time at the K 2019 trade fair. This shredder was developed for dry operation as well as for wet opera- tion and has a maintenance-friendly design in addition to its high capacity. The machine is designed to be very robust and durable. In many plants, the crusher is the first stage in the process. In this stage, foreign bodies are often impossible to avoid. For this reason, some of the special features of this stage have been taken into account during its development that the company claims are unavailable in any other machines on the market. The company focuses on making a perfect wear-protected rotor that, in addition to custom knife configura- tions, is equipped in particular with bolted armour plating and a special grinding chamber seal. The time- consuming hard-facing of rotors is therefore unnecessary. The two-sided belt drive is low- maintenance, and to safeguard against foreign bodies, there is a clutch that prevents damage to the machine when uncrushable feed material is encountered. The maintenance concept is tai- lored to ensure optimal accessibility based on ergonomic considerations. The first machines are already in use at customers in Europe, and the offi- cial product launch will take place at the K 2019 trade fair. Easy accessibility ensured DWS two-shaft shredder A new two-shaft shredder with the stator positioned in the middle will be presented as a new innovation at the fair. Due to the large surface area of the rotor, the machine is stated to have a good feed performance and to be suitable for materials that can only be fed in doses using conventional shredders such as big bags or high- volume containers. Size reduction Herbold granulators grind all plastic waste materials. SB granulators with force feeding The Herbold SB series granula- tors with force feeding have been used successfully worldwide for many years. “We have consciously redesigned this series of machines to enable complete horizontal charging”, stated Karlheinz Herbold, who is responsible for the technology as the Executive Director. The feed material is not fed into the grinding chamber from the top through the force of gravity as in the case of standard granulators, but by even feeding the material into the grinding chamber horizontally at the height of the rotor using screw conveyors. To accomplish this, the machine hous- ing and feed system were completely redesigned to meet all requirements in terms of size-reduction performance as well as ease of access for mainte- nance purposes. Herbold SB granulator with force feeding (trade fair exhibit SMS 80/160 SB) Washing, separating, and drying The treatment of process water also plays a decisive role, especially for washing lines. Herbold now offers solutions covering this area as well. Hall 9 Herbold Booth B42