Abstract: A kit configured to perform oral cavity inspection comprising at least one of: an observation component, a light source component and a dental disclosing agent applied on dental surfaces wherein interaction between a line of sight of the observation component and a light beam of the light source component at the dental disclosing agent exhibits an angle of illumination a equal to or less than 35 degrees.

Abstract: A rotary kiln burner particularly for fine-grained solid fuels such as coal dust, with jet air nozzles which can be adjusted easily and effectively during operation of the kiln in order to change the divergence angle of the high-speed jet air streams to change the flame shape and optimize the combustion. The jet air nozzles are attached with the nozzle openings divergent to the burner axis at the end of jet air pipes. The nozzle openings are arranged around the burner axis, with the axes parallel, with the jet air pipes arranged inside an annular cooling air space surrounding the coal dust channel and enclosed on the outside by the burner housing pipe.

Abstract: In order to provide a rotary-furnace burner in which the quantity fraction of cost-effective particulate secondary fuels to be used as energy carriers can be increased and the configuration of the burner flame can be influenced, even during the operation of the burner, it is proposed, according to the invention, to arrange an expansion chamber open towards the burner mouth and having a widened cross section, as compared with the tube or individual tubes in the burner in front of the issue of the tube or tubes for blowing out the secondary fuels, and to make the axial length and the volume of the expansion chamber variable, during the operation of the burner, by means of the axial displacement of the secondary-fuel tubes, so that the particulate secondary fuel particles blown out at the burner mouth with a considerably reduced velocity do not fly past the burner flame, but, instead, burn out in the flame.

Abstract: A process and device for the reliable monitoring of the current condition of the protective jacket formed of fireproof material, in particular of a rotary tubular kiln burner lance, during operation of the kiln system. A compressed air ring main and/or an annular metal wire loop forming part of an electrical circuit extending around the circumference of the protective jacket are embedded in the fireproof compound of the protective jacket in the area of the burner tip, in which in the event of burning through of the ring main or metal wire loop, a connected pressure sensor or current sensor generates a monitoring signal.

Abstract: In order, for operating the lance burner of a rotary tubular furnace for the production of cement clinker from calcined raw cement meal, to provide an automated regulation method which is optimized in terms of the configuration of the burner flame for all types and quantities of fuels used, according to the invention a regulation method is proposed in which the characteristics of the burner flame are used as measurement variables, and the measurement variables are delivered to a controller which can vary at least three different manipulated variables of the burner, such as the spatial outflow angle and the swirl momentum of the swirled primary-airstream and/or the angle of divergence of the primary-air/jet-air jets emerging from individual nozzles and/or the velocity of emergence and/or swirl component of a stream of fragmentary alternative fuels or secondary fuels which is blown through the burner.

Abstract: In order to provide a rotary-furnace burner in which the quantity fraction of cost-effective particulate secondary fuels to be used as energy carriers can be increased and the configuration of the burner flame can be influenced, even during the operation of the burner, it is proposed, according to the invention, to arrange an expansion chamber open towards the burner mouth and having a widened cross section, as compared with the tube or individual tubes in the burner in front of the issue of the tube or tubes for blowing out the secondary fuels, and to make the axial length and the volume of the expansion chamber variable, during the operation of the burner, by means of the axial displacement of the secondary-fuel tubes, so that the particulate secondary fuel particles blown out at the burner mouth with a considerably reduced velocity do not fly past the burner flame, but, instead, burn out in the flame.

Abstract: In order to create a process and device for the reliable monitoring of the current condition of the protective jacket, consisting of fireproof material, in particular of a rotary tubular kiln burner lance, during operation of the kiln system, the invention proposes embedding a compressed air ring main (12) and/or an annular metal wire loop (14) forming part of an electrical circuit extending around the circumference of the protective jacket in the fireproof compound of the protective jacket (10) in the area of the burner tip, in which in the event of burning through of the ring main (12) or metal wire loop (14) a connected pressure sensor or current sensor generates a monitoring signal.

Abstract: In order to create a rotary kiln burner particularly for fine-grained solid fuels such as coal dust, with jet air nozzles which can be adjusted easily and effectively during operation of the kiln in order to change the divergence angle of the high-speed jet air streams to change the flame shape and optimise the combustion, the invention proposes attaching the jet air nozzles (20) with the nozzle openings divergent to the burner axis at the end of jet air pipes (21), and arranging these around the burner axis, with the axes parallel, with the jet air pipes (21) arranged inside an annular cooling air space (22) surrounding the coal dust channel (16) and enclosed on the outside by the burner housing pipe (19), mounted so that they can rotate around the jet air pipe axes, so that on turning the jet air pipes (21) at the cold end of the burner lance, the divergence of the high-speed jet air streams, and thus the angle of the jet air flow cone in relation to the coal dust cone can be changed and adjusted.