Sinvent As

Sintef (selskapet for Industriell Og Teknisk Forskning Ved Nth)

Norweigian University of Science and Technology (ntnu)

Norwegian University of Science and Technology

Jon Arne Bakken

Andreas Westermoen

Ola Schiefloe Raaness

Robert Fritzsch

Mark William Kennedy

Shahid Akhtar

Ragnhild Elisabeth Aune

Bodil Monsen

Roar Jensen

Kjersti Kleveland

Steinar Prytz

Benjamin Ravary

Ola S Raaness

Ola Raaness

An apparatus and method are described for effectively priming a non-electrically conductive filter for removal of solid inclusions from liquid metal. In one embodiment, the ceramic filter media is surrounded by a low frequency induction coil (1-60 Hz) with its axis aligned in the direction of the net metal flow. The coil is positioned to enhance the heating of any metal frozen onto, or in the pores of, the filter element. In one embodiment, the coil is positioned in order to generate Lorentz forces, which act to cause heated metal to impinge on the upper surface of the filter element, enhancing the priming action. Once a filter equipped with such a coil has been primed, it can be kept hot or reheated, and subsequently reused during several batch tapping sequences.

Apparatus and method for priming a molten metal filter

The present invention concerns a process for producing carbon nanotubes or other carbon nanostructures, e.g. cones. The process comprising evaporating/decomposing a carbon containing material in a voluminous thermal plasma generated by rotating an electric arc using an externally applied magnetic field, and condensing said evaporated/decomposed carbon containing material on surfaces or on particles in a gas flow. A reactor for performing the process is also described.

Method and reactor for producing carbon nanotubes

Plasma burner provided with an electrode holder for the support of a cently arranged electrode and an outer electrode, a device for applying an electrical voltage for producing an electric arc between the electrodes and a device for the supply of gas to the electric arc area of the electrodes. The electrodes constitute a continuously consumable electrode system in which the outer electrode has the shape of a pipe while the other electrode is pipe- or rod-shaped and coaxially arranged within the outer electrode so as to define therebetween a passage of annular cross-section. The electrode holder is designed to conduct gas through the passage forwards to a front, free end of the electrodes where the electric discharge occurs from the end of the inner electrode.

Plasma burners

Growing community of inventors

Trondheim, Norway

Jon Arne Bakken