Genbrug af kompositmaterialer fra industrien
Projekt bevilget af Styrelsen for Forskning og Innovation
To recycle the blade, rough intersection of the blade is often needed. The process steps for resize / reshape can be used for this purpose, but also the process steps mentioned below. The appropriate method depends on the purpose or use, the local environmental requirements, and the size of the blade.
The jaw cutter is the most common and dirtiest method for sectioning wind turbine blades. The hydraulically driven jaw produces a very rough cut through the material, and the material is more or less crushed in the cutting zone. It is difficult to control the dust and fibre emissions; it is necessary to have a water fog to control the dust; and it is necessary to sanitize the area after completion. The sectioned materials are prone to emit dust and fibres during transport, which increases the demand for proper stowing and protection on the lorries.
The cutting and transport activities are normally outsourced to contractors or regional waste handlers. They should be consulted to obtain more specific information on facility requirements e.g. FRP taxes, FRP bans, dimensional requirements of blade sections, available capacity/volume, etc.
Generally, best practice utilizes a mechanical process (excavator saw) for sectioning the blades, rather than a manual process (handheld tools). Further, EHS (environment, health and safety) aspects related to cutting and transport activities should be risk assessed e.g. machinery and equipment, working at heights or with suspended loads, manual handling/ergonomics, personal protective equipment, noise and dust, etc.
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