Paper & Cardboard
Electric and electronic scrap (e-scrap) contains valuable raw materials. To be able to recover these materials, they have to be reliably shredded, separated and removed. If you are a new or established business with electronic waste disposal needs, let Harden’s staff of experts help you design a complete electronic waste recycling system or help you select from our large selection of e-waste equipment.
Generally the recycling process starts with the dismantling of large parts such as compressors or transformers. Then the whole product is put through a Shredder. The next step is usually the rough separation of plastics, metals and other materials. Materials can then be further reduced in size with the use of Granulators and Pulverizers. The whole process of fine separation and classifying the various materials is complex and requires specialised equipment. The brief process is as below.
Stage 1. Prior to mechanised processing, hand sorting of WEEE occurs to extract materials such asbatteries and copper for quality control purposes.Some hand sorting can also occur at later stages of the process for quality control purposes (Stage 4 and 5) such as battery extraction and non metallic material recovery.
Stage 2. Initial size reduction process reduces materials to approximately 100 mm in size. This prepares the materials for the seconary process. It also ensures secure destruction of equipmentwith sensitive materials such as hard drives.
Stage 3. The material then proceeds through a sceonary size reduction process. This facilitates the separation of materials ready for sorting. Dust extracted at this stage is sent for sound environmental disposal.
Stage 4. Iron and steel(Ferrous) metals are removed from the reduced material using electro magnets. This material is then collected in large storage containerrs ready for sale.
Stage 5. Aluminium, copper and brass(Non ferrous) matals are separated from material with low or non-matallic content such as wire, plastic and printed circuit boards. This is achieved using EddyCurrents(created by rapidly alternating magnetic fields) which induce non-ferrous content to leap away from the conveyor whilst other material drops straight down.
The WEEE we can process:
- Hard Drives
- Tapes Cartridges/Toner cartridges/Ink cartridges
- Circuit Boards
- Cell Phones