Abstract: A flanged bracket is used with fasteners to attach at least one spanning member to at least one supporting member extending transverse to the spanning member. The bracket has a first flange, a second flange and a third flange. The second flange extends approximately perpendicular from the first flange. The third flange extends approximately perpendicular from the second flange. With a side of the spanning member touching a supporting face of the transverse supporting member, the bracket is positionable such that the first flange can be attached to a side of the supporting member, and the third flange can be attached to a face of the spanning member. The second flange extends between the first and third flanges in a plane approximately parallel to a contact area between the spanning member and the supporting member.

Abstract: Emission of nitrogen oxides from a mineral-burning process, for example a cement-manufacturing process, is reduced by passing the exhaust gas from the rotary kiln in which the mineral raw materials are burnt to a combustion zone in which solid fuel elements, for example waste tyres, are maintained for a sufficient period and at a sufficient temperature for at least 30% by weight of the volatile combustible content of the solid fuel elements to be combusted, the combustion zone comprising at least one region in which the combustion of the solid fuel elements occurs under sub-stoichiometric conditions. The solid fuel elements may be introduced into the hot gas stream at at least one point between the mineral-inlet end of the rotary kiln and the lowermost cyclone of an associated preheater system, e.g. into the gas stream within a precalciner vessel or riser duct. Preferably, tertiary air from a clinker cooling apparatus is supplied downstream of the combustion zone (relative to the flow of kiln exhaust gas).