VSD - Double screw conveyor

Vecoplan offers the double screw conveyor to convey powdery, difficult-flowing bulk materials that tend to form bridges in a metered and uniform manner.

Double screw conveyors are preferred for powdery, stubbornly flowing bulk materials that tend to form “bridges”. Vecoplan’s double screw conveyors of the VSD series convey materials like this in a dosed and uniform manner. The conveyance route can be both horizontal and ascending. The design is single-shaft or multi-shaft depending on the usage scenario. Pumping capacity is up to 700 cubic metres per hour (depending on the pumping diameter). You will benefit from a simple, compact and robust design, a long service life and low maintenance.

Advantages at a glance

  • Depending on the conveying diameter, a conveying capacity of up to 700 cubic meters per hour is achieve
  • Individual loading possibilities of the conveyed material at any point
  • Simple, compact and robust design
  • High lifetime, low maintenance

Convince yourself of our flexibility in the implementation of your requirements.

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Can be used for following material

Wood
Biomass
Files and data
Paper and cellulose
Domestic and industrial waste
Alternative fuel
Plastics - post-consumer
Plastic - post-industrial
Plastic - Inhouse Recycling
All

Wood chips

Wood chips are used in the manufacture of chipboard and medium-density fibre (MDF) boards. They are also used as fuel in heating plants, in combined heat and power plants and in gardening and landscaping.

Wood and milling chips

Planing and milling chips are usually reground and then used as insulation material or, for example, in the production of pellets.

Straw

Grain straw is used in biogas plants. The material is also used in the form of straw pellets for alternative heat generation. Straw is the primary material used in the production of bioethanol.

Coconut shells

Briquettes made from coconut shells burn longer than wood and can be used in crop-growing countries to replace wood from life-sustaining forests. The material is also suitable for use as a fuel in biomass plants and boiler plants. The fibres in coconut shells have excellent insulating properties and are used to this end.

Grasses

Some grasses, such as miscanthus and switchgrass, are called biomass grasses because of the large amounts of biogas they can produce.

Residual forest wood

Residual forest wood is often the raw material for mulch, but it is also used as animal feed. In addition, it is used as fuel in biomass CHP plants (combined heat & power plants).

Green waste

Green waste is used as co-substrates for soil improvement and is increasingly incinerated for energy in biogas plants. Coarser fractions of wood can also be made into mulch.

Hard disks, electronic data carriers

The Federal Office for Data Security recommends the physical destruction of hard disks and other electronic data carriers as the only way to destroy data permanently.

File folders, paper documents

Analogue data storage still plays an essential role even in this digital age, and this is why the data protection-compliant destruction of sensitive files and documents belongs in the hands of experts.

CDs, DVDs, floppy disks

Optical media such as CDs and DVDs have now replaced magnetic data carriers such as floppy disks. However, both variants are still subject to strict destruction regulations.

Magnetic tapes

Shredding magnetic tapes, when done correctly, is the best way to ensure that data is gone forever.

Waste paper

Wastepaper collected from households & commercial companies and even misprints from the printing industry are efficiently processed in paper industry plants to produce new paper, cardboard and paperboard.

Cardboard, paper tubes

The use of transport packaging will continue to play an essential role in the future, making it all the more important to keep the recycling rate as high as possible to conserve energy and resources.

Production waste

The requirements for handling production rejects range from destroying misprints at publishers to reducing the volume of waste temporarily stored in print shops and preparing it all for paper recycling.

Paper industry waste

Braids, spits, bears or fibre residues are the recyclable residues in paper recycling. The technical jargon under the collective term: pulper waste. As a leading specialist for shredding technology, we know what is important in this application. Pulper waste is diverse. The plastic it contains can be used thermally. The metal wires but also existing non-ferrous metal can be reused as recycling material.

Domestic waste

Residual waste is optimally handled by shredding it in mechanical-biological waste treatment plants (MBT) and separating the various recyclable materials from each other. Another use of residual waste is thermal utilisation in a waste incineration plant. The heat released is used both to generate electricity and to provide heat.

Lightweight packaging

Increasing the recycling rate of packaging with the aim of recycling more valuable materials than before is a key issue in the circular economy. In order to efficiently recycle the packaging collected in bags, this waste must be continuously and reliably sorted.

Bulky waste

Bulky waste chiefly includes discarded furniture, mattresses, wallpaper remnants and old carpets. Nowadays, most bulky waste can be recycled for materials and energy.

Industrial waste

Commercial municipal waste (also abbreviated to commercial waste) is municipal waste from sources other than private households, in particular commercial and industrial waste as well as waste from private and public institutions. This waste is similar to waste from private households due to its nature or composition and must be disposed of in the same way.

However, commercial municipal waste also includes other production-specific waste from other sources, such as workshop waste, cleaning rags containing mineral oil, paint buckets or non-infectious waste, leather waste, metal waste, including shavings from metalworking and metal processing.

Domestic waste

Typical residual waste from households offers little potential for material recycling. However, in the cement industry, the high-calorific fractions from the waste can be used as an alternative fuel. RDF manufacturers filter out these fractions by shredding and separating them.

Bulky waste

Largely homogeneous RDFs with good combustion and low pollutant properties can be produced, even from bulky waste.

Industrial waste

The non-recyclable materials from waste generated in industry and commerce can be processed into RDFs and used in power plants or the cement industry.

Waste paper industry

Both the cement industry and brick manufacturers increasingly rely on RDFs for their production. Waste from paper production can be used as an alternative fuel.

Used tyres

Rubber is a versatile material due to its properties. The best known and largest product in terms of volume is the tyre. In addition to thermal recycling as substitute fuel, for example in cement plants, used tyres can also be recycled, e.g. the granulate obtained can be used for a wide variety of floor coverings.

Rubber and rubber residues

Natural rubber is the basis of all rubber products and is a valuable natural raw material, so the aim here is to achieve the highest possible recycling rate through material recovery. However, the parts that cannot be further processed can still be used as an adequate fuel in cement production.

Sorting residues

In sorting plants for light packaging (LVP), the packaging items pass through various packaging items pass through various stations, at each of which a specific fraction of the material is sorted out of the material flow. Pressed into bales, the individual material fractions are then sent for recycling. Waste designation Sorting residues: Sorting residues from facilities for sorting lightweight packaging, so-called DSD sorting residues. These can be processed into alternative fuels in substitute fuel processing plants.

Waste wood, used wood

Wood waste or even old pallets can be used as a renewable raw material for energy production. Effective processing is essential to produce a waste-based RDF.

Biomass

Residual materials are chiefly used as solid biogenic fuels – in other words, biomass that is hardly suitable for purposes other than incineration. For example, these materials include forest and industrial residual wood, waste wood, garden and park waste and straw.

Textiles & Non-woven material

Textiles or woven materials made from natural materials such as wool, cotton or synthetic & blended fabrics are processed into fibres in unique processes. For impurities such as buttons, zippers, etc., reliable separation technology is used in the plant.

Hard plastic

In contrast to the processing of lightweight packaging, which is primarily well organised today, hard plastics were still often thermally recycled in the past. However, the recycling rate of these materials is now also increasing thanks to optimised treatment processes.

Big bags and bulk material containers

In order to return extremely tear-resistant plastic fabrics such as big bags to the production cycle, they have to be processed. The key component for this is the shredder. The more efficient the shredder, the safer the subsequent processes. With Vecoplan, these robust and often contaminated connective tissues can be efficiently processed.

Film

Regranulates can be created as secondary raw materials from packaging, agricultural film, composite film, etc. The treatment process for this includes shredding technology, separation and sorting technology, washing and subsequent extrusion.

Packaging

As the demand for high-quality regranulates increases, closed-loop recycling is playing an increasingly important role in the material recovery of plastics, and this is why shredding is a critical process step since it is a preliminary stage for the subsequent sorting of recyclable materials.

Fibres, filaments & yarns

The particular challenge in the mechanical treatment of used cords and yarns is not only that they are made of highly tear-resistant, thin and partly viscoplastic material, but they are also tangled and contaminated by stones, wood debris and other impurities.

Hollow body containers

As the demand for the use of recyclates made from polyolefins – especially HDPE and PP – is constantly increasing, the collection and processing of these containers are also playing an increasingly important role. Here we must ensure that we adapt our machines and plants to the requirements of the materials.

Start-up lumps

The processing and recycling of waste from the plastics processing industry is economically attractive due to the savings in costs for new raw materials. Plastics processors can enable a consistent quality. This issue is significant when using engineering plastics with the highest mechanical properties since they are costly to produce.

Pre-Products

The recycling of plastics which are expensive to produce due to their technical properties and are often used to manufacture semi-finished products offers some potential savings for manufacturing companies. However, clean separation of the different plastics is a prerequisite. The pure regranulate obtained can then be used to produce sophisticated plastic components.

Film

Waste generated during production should, if possible, be returned directly to the internal production cycle without any losses or loss of quality. If such in-house recycling is not possible due to company-specific constellations, external recycling companies can also process film waste.

Fibres, filaments & yarns

For all their differences, the residual materials from the production of fibres, filaments and yarns share some particular mechanical properties: Toughness and high wear and tear resistance, combined with a high degree of elasticity. These present particular challenges for the shredding process.

Production waste

More and more plastics processing companies that manufacture a wide variety of plastic products are taking advantage of the opportunity to return production and process waste to the internal cycle. This saves raw material costs, plus the disposal costs for external recycling plants.

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