Retired Wind Turbine Blades Pyrolysis Recycling Machine

Wind turbine blades are one of the core components of wind turbines and are typically made of composite materials. These primarily consist of thermosetting resin-based composites reinforced with glass fiber or a blend, along with certain amounts of metals such as aluminum and copper, and small amounts of epoxy structural adhesives and polypropylene oxide-based paints.

Retired wind turbine blades for recycling and disposal

Retired wind turbine blades are large and made of complex materials. Traditional disposal methods, such as landfill and incineration, not only consume significant land resources but also pose environmental risks. Against this backdrop, pyrolysis machine for retired wind turbine blades is an innovative technology that provides a green solution for the recycling of retired wind turbine blades.

Principle and Advantages of Pyrolysis Machine for Retired Wind Turbine Blades Recycling

The pyrolysis machine primarily pyrolyzes wind turbine blade shreds under oxygen-deficient or slightly negative pressure conditions. The organic components in the composite materials are converted into reusable resources such as fuel oil, carbon black, and gas, while inorganic components such as glass fiber and metal are recovered as by-products. The resulting glass fiber can be used directly as filler or as a raw material for fine alkali-free glass powder. After pyrolysis treatment of scrap wind turbine blades, the resin and glass fiber recovery rates are high, around 50-62%, and the pyrolysis oil yield is around 25%. This allows for the recycling of as many retired wind turbine blades as possible.

Wind turbine blades pyrolysis recycling machine

Technical Features and Applications of Pyrolysis Equipment for Retired Wind Turbine Blades

1. Environmentally Friendly and Efficient: The pyrolysis process for retired wind turbine blades produces virtually no harmful gases. Exhaust and flue gas treatment systems ensure that emissions meet environmental standards. Furthermore, pyrolysis products, such as glass fiber and fuel oil, have high market value, increasing the economic benefits of wind turbine blade recycling.

Environmental wind turbine blades disposal pyrolysis solution

2. High Adaptability: The decommissioned wind turbine blades pyrolysis recycling machine can process scrap blades made of various materials, including composite materials such as glass fiber reinforced plastic (GRP) and carbon fiber reinforced plastic (CFRP), making it suitable for various types of wind turbine blades.

3. Resource Recycling: The fuel oil produced by pyrolysis can be used as industrial fuel, the carbon black can be used as a filler in rubber products, and the metal and glass fiber can be recycled and reused, achieving full resource recovery for wind turbine blades.

Practical Cases and Market Prospects of Scrap Wind Turbine Blades Pyrolysis Machine

Currently, Henan DOING's wind turbine blades recycling pyrolysis machine has been deployed in multiple provinces across China and is operating successfully. For example, one customer in Gansu Province selected a semi-continuous pyrolysis process, coupled with a crusher. The crusher first shreds the wind turbine blades, and then feeds the crushed material into the pyrolysis machine via a feeder scraper for thermal decomposition. DOING engineers designed five units for this customer, each with a daily processing capacity of 15 tons. The semi-continuous process eliminates the need to open the furnace door or wait for the furnace to cool before slagging, enabling high-temperature slagging. This significantly reduces cooling time, resulting in high production efficiency and the ability to process three furnaces in two days.

Retired wind turbine blade pyrolysis recycling plant project

With the development of the wind power industry, market demand for pyrolysis machine for decommissioned wind turbine blades is also growing. This pyrolysis technology is expected to play an increasingly important role in the wind power industry's waste management over the next few years.

As an application of the circular economy concept to waste management in the wind power industry, retired wind turbine blades pyrolysis recycling machine not only solves the difficult problem of disposing of used wind turbine blades but also achieves efficient resource recycling, meeting the requirements of sustainable development. With continued technological advancements and growing market awareness, we believe that the application of pyrolysis machine in the treatment of retired blades will become even more widespread.