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New Dust Burner: Unique System Solution for Special Customer Requirements. With increasing frequency customers are requesting special solutions, as did M/s. Loesche in Düsseldorf. For a plant project in Russia they were looking for a firing system which took particular fuel specifications into consideration. With a large-scale firing test in the testing facility of Körting Hannover AG it was possible to test the suitability of the fuel successfully. The Düsseldorf mill specialist Loesche was on the look-out for a dual-fuel burner system to fire lignite dust and heavy oil for a dryer plant. The problem thereby was, however, the characteristics of the coal dust which deviated in its chemical composition from the usual characteristics. First of all, a firing test was carried out at the Körting dust burner test facility to ensure the technical feasibility of the project. “By means of the Flexible firing system: The particular specifications of the pure lignite dust are taken into consideration. results we were able to adjust the firing system specifically to the fuel requirements“, Hennig GmbH offers the possibility of contributing a as Dr. Benedikt Roberg, Director of the affiliated sophisticated special manufacturing in the sectors Körting company, Hans Hennig GmbH, stated. So of automation technology and fuel supply systems. therefore nothing stood in the way of realising this So the burner and the dust dosing unit were project. “No other manufacturer of dust burners has manufactured by Körting Hannover AG, the switching comparable possibilities“, reported Dr. Benedikt unit and the heavy oil pump station with heavy oil preRoberg. Indeed, here problematical fuels can be heater by Hans Hennig GmbH in Ratingen. tested in the test facility with regard to the suitability for generating heat. “Only so can we offer our customers Low Pollutant Emissions the security of our adherence to the required firing system characteristics.“ “The strength of the system lies just in its flexibility“, as Dipl.-Ing. Michael Branzke, Project Manager at Körting Hannover AG explained. ”The firing system Successful Mutual Project is in a position of being able to fire lignite dust and The project was processed and developed by Hans heavy or light fuel oil simultaneously as well as in Hennig GmbH in collaboration with Körting Hannover solo operation mode. The automatic firing device AG. Körting Hannover AG supplied the necessary which we have parameterised permits an automatic know-how and the required equipment to construct fuel switch-over between pulverous and liquid fuels. and test the dust burners. In this combination, Hans “The decisive factor thereby is however, that with the Körting-/Hans Hennig technology a solo dust operating mode with a large control range can be realised without additional support firing. Of course, the basic requirements thereby are low pollutant emissions under all operating conditions. Again, Körting Hannover AG’s excellence is demonstrated and reinforced by a strong affiliated company, Hans Hennig GmbH, in a niche of developing tailor-made products in accordance with customer requirements. The Düsseldorf mill specialist Loesche expressed itself as being extremely satisfied with the professional processing of the order. Supply train for heavy oil: Automatic fuel switch-over. At a glance Application of a firing system for generating hot gas System components: Dual-fuel burner, combustion air supply, dust dosing, heavy oil pump station with oil pre-heater, switching unit with local controls and output switchboard cabinets Firing performance Dust/Heavy oil: 17.000 kW Control ratio: 1:5 for dust Dust consumption: 2.800 kg/h Heavy oil consumption: 1.600 l/h Air excess: 1.5-2.0 Air supply: 34.000 Nm³/h Firing manager: FMS 5 with electronic compound Plant for lignite dust dosing. Further information and contact: Michael Branzke Dr. Benedikt Roberg Dust Burner Projecting Manager Development of Heat Technology Products Körting Hannover AG Körting Hannover AG +49 511 2129-398 and Director of Hans Hennig GmbH [email protected] +49 511 2129-372 [email protected] www.koerting.de www.hanshennig.de