Metso Minerals, Inc.

Kiln Flame Systems Limited

Clayton Holmes

Clifford John Rennie

Christopher Phillip Sansom

Richard Manning

Clifford Rennie

Christopher Sansom

This invention relates to a burner () for burning a suspension of solid fuel in oxygen containing gas. A portion of the suspension is passed through a first conduit () which contains a bluff body () and helical vanes to impart turbulence and swirl to the suspension. A further portion of the suspension is passed through a second conduit () which is coaxial with the first conduit. Means for varying the relative sizes of each portion are provided. The arrangement allows improved fuel/air mixing, flame shape, heat transfer and control of NOx emissions.

Burner for the combustion of particulate fuel

A burnercomprising a burner bodyhaving a burner chamber with a backing plateand having a burner element received in the burner chamber, the burner element having a plurality of gas nozzlesfor supplying gas into the burner, the gas nozzleseach ending in a tip through which the gas exits and gas nozzle, and each gas nozzle being rotatable such that the direction of gas exiting the gas nozzle can be adjusted. The burner has means for rotating the gas nozzlesprovided on the backing plate and by releasable means for retaining each gas nozzlein a plurality of rotational configurations provided outside the burner chamber. The gas nozzlesfurther comprise first and second parts which are detachable from each other, the first part comprising the tip and the second part being upstream of the first part with respect to the flow of gas into the gas nozzles in use. The burner allows for tuning of gas flow from outside the burner while it is in use.

Burner

This invention relates to a burnerincluding a burner bodyhaving a burner chamber with a backing plateand having a burner element received in the burner chamber, the burner element having a plurality of gas nozzlesfor supplying gas into the burner mounted therein for rotational movement such that the direction of gas exiting the gas nozzle can be adjusted. The burner is characterized by means for rotating the gas nozzleswhich are provided on the backing plateand by releasable means for retaining each gas nozzlein a plurality of rotational configurations provided outside the burner chamber. The burner allows for tuning of gas flow from outside the burner while it is in use.

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Clayton Holmes