Vecoplan-Glossary

We are happy to share our knowledge with you !

From A for air separators to W for wood chips, our glossary has short and precise explanations for specific terms. However, no glossary can claim to be complete, not even ours. That’s why we are constantly expanding the list – so if you want to look up industry-typical terms quickly and easily, feel free to take a look.

Recyclable materials cycle

The recyclable materials cycle describes the process of collecting, processing, recycling and reusing recyclable materials to create a closed loop. This approach aims to minimise waste, conserve natural resources and reduce environmental impact. A functioning recyclables cycle helps promote a sustainable economy by reducing dependence on finite raw materials while curbing pollution. By providing state-of-the-art machinery and equipment for the collection, processing and recycling of recyclables, a company helps to reduce waste and minimise environmental impact.

Circular Economy

The Circular Economy is a concept that aims to transform the traditional linear economic process (extraction, production, use, disposal). Instead of a "take-use-throw-away" approach, the Circular Economy strives to create a closed loop in which products, materials and resources are continuously reused, repaired, recycled and upgraded. The Circular Economy process is at the heart of this effort and is a pioneering approach to optimising resource use and minimising environmental impact.

Cross Laminated Timber - CLT

Cross Laminated Timber (CLT) is a sustainable timber construction material consisting of cross-laminated layers of sawn timber. Due to the special arrangement of the layers, CLT panels are very stable, resilient and fire-resistant. CLT has a wide range of applications in the modern construction industry, as it enables efficient, environmentally friendly and faster construction methods for residential buildings, offices, educational facilities and other building projects.

Due to the strength of the material, processing it for material or thermal recycling of production waste is very demanding, especially in the field of shredding technology.

Domestic and commercial waste

Domestic waste is a mixture of waste that is usually put into bins or bags and collected by the public or privately organised waste collection services. In Germany, domestic waste is defined as “solid waste from private households that is collected and emptied by the waste management authorities themselves or by third parties commissioned by them in standardised emptying containers prescribed in the disposal area.” Commercial waste is waste from crafts, service industries, trade and public institutions. It is similar to domestic waste in terms of its nature or composition.

Friction separator

The friction separator, as an essential part of the , is a key element for the efficient separation of impurities from different material streams. The friction separator is a technological tool that aims to separate material streams based on their physical properties. This is done by exploiting the differences in frictional forces between particles composed of different materials. By selectively introducing motion and kinetic energy into the material stream, a separation is achieved in which the materials are separated from each other based on their different frictional properties.

Light and heavy fractions

Shredding produces light and heavy fractions. Both of these require a coordinated process technology in order to obtain the recyclable materials they contain. An air separator separates the material flow into these two fractions. During the process, the light substances are transported into the expansion chamber by means of air flow. In the chamber, the air velocity is reduced to such an extent that the light substances end up on a discharge belt. Among other items, stones, non-ferrous parts and larger pieces of wood are separated by the heavy fraction. The heavy materials fall downwards onto a discharge belt in front of the rotary drum in the air separator.

Pre-shredding

Pre-shredding is a central process in the waste and recycling industry. This phase of material management plays a crucial role in the overall process of waste processing and treatment. It involves bringing the incoming waste stream into a manageable and homogeneous form before it is fed to further processing steps. The process begins with the material feed, where the waste stream to be processed is fed into the plant. This can include a variety of materials, such as plastics, wood, biomass or metals. In this phase, the material is shredded into smaller pieces or particles using shredders, granulators or hammer mills. The shredded materials are homogenised in this phase to achieve a uniform texture. This is crucial to ensure the efficiency and quality of the subsequent processing steps. Any foreign bodies or impurities that may be present are separated out by specific
separation processes. This ensures the purity of the end product and prevents damage to downstream machinery or equipment.

Pre-shredding

Pre-shredding is a central process in the waste and recycling industry. This phase of material management plays a crucial role in the overall process of waste processing and treatment. It involves bringing the incoming waste stream into a manageable and homogeneous form before it is fed to further processing steps. The process begins with the material feed, where the waste stream to be processed is fed into the plant. This can include a variety of materials, such as plastics, wood, biomass or metals. In this phase, the material is shredded into smaller pieces or particles using shredders, granulators or hammer mills. The shredded materials are homogenised in this phase to achieve a uniform texture. This is crucial to ensure the efficiency and quality of the subsequent processing steps. Any foreign bodies or impurities that may be present are separated out by specific
separation processes. This ensures the purity of the end product and prevents damage to downstream machinery or equipment.

Single stage shredding

Single-stage shredding is a process used by the waste and recycling industry to reduce the volume of materials, make them more manageable and recover valuable raw materials for the recycling loop. Single-stage shredding is a mechanical method of reducing large materials into smaller pieces or particles. This process is ideal for materials such as plastics, wood, biomass, paper and other waste materials commonly found in the waste management and recycling industry. The aim is to reduce the size of the materials to make them easier to handle, store and proces

Two-shaft shredder

The two-shaft or twin-shaft shredder is used for the efficient shredding of large-volume materials and plays a central role in high-throughput recycling processes. A twin-shaft shredder, also known as a double-shaft shredder, is a type of shredder that consists of two shafts arranged in parallel and rotating in opposite directions. Attached to these shafts are cutting tools that break down the material to be shredded into smaller particles or pieces by cutting, tearing and shredding. These cutting tools can have different shapes and configurations depending on the specific requirements of the materials to be processed.

Washing technology

Washing technology refers to the process of cleaning, separating and processing materials, especially plastics, through the use of specialized equipment and processes. This technology enables the removal of impurities, foreign substances and residues from the material, which is crucial for the quality and recyclability of the end product.
Since the term "washing technology" implies a process using water, Vecoplan uses the term "cleaning". This also includes dry cleaning processes.