A method for in - site and ex - site decontamination of soils and / or residues, in which horizontally - radially - or a non-woven art are combined and cleaning agent

摘要

The actuator comprises a housing, a shaft 1 rotatably mounted with respect to the housing, at least one rotor arm 2, 3 attached to the shaft, and at least one electromagnet assembly 8, 9. The electromagnet assembly consists of a U- or L-shaped yoke, the base of which is substantially parallel to the axis of the shaft. A solenoid 16, 17 is wound around the base and the or each pole arm 12, 13 extends in a plane substantially perpendicular to the shaft axis and curves around the shaft axis, the pole arm being constructed so that it tapers to form a claw-shape. Permanent magnets 4, 5, 6, define the equilibrium positions of the rotor. Successive current pulses of alternating polarity fed to the coils cause rotation of the shaft by 180 DEG increments. IMAGE