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Klegraf

Daniel Klegraf, Ruthen-Westereiden DE

Patent application numberDescriptionPublished
20110097679DEVICE FOR PERFORMING CHEMICAL AND/OR PHYSICAL REACTIONS BETWEEN A SOLID MATERIAL AND A GAS - The device according to the invention for performing chemical and/or physical reactions between a solid material and a gas, in particular for preheating, cooling and/or calcining fine-grained materials substantially comprises at least one helical and/or spiral line, in which a gas/solid material suspension is separated by centrifugal forces into a solid material flow and a gas flow and at least one separation chamber which is connected to the end of the helical and/or spiral line and which is connected to a gas line in order to direct the gas flow away or which is formed by a portion of the gas line, a solid material line for directing the solid material flow away being connected to the separation chamber. The helical and/or spiral line opens into the separation chamber tangentially at an angle of at least 30° relative to the horizontal and the cross-section of the separation chamber in the region of the opening is from 0.5 to 1.5 times as large as the cross-section of the helical and/or spiral line.04-28-2011
20110165031DEVICE FOR PERFORMING CHEMICAL AND/OR PHYSICAL REACTIONS BETWEEN A SOLID MATERIAL AND A GAS - The device according to the invention for performing chemical and/or physical reactions between a solid material and a gas, especially for preheating, cooling and/or calcining fine-grained materials has at least three stages arranged one above the other, each stage comprising the following components: a. a gas-solids suspension duct for conducting a gas-solids suspension, b. means for separating the delivered solid material from the delivered gas, c. a solids duct for discharging the separated solid material, d. and a gas duct for discharging the separated gas, the gas duct of one stage merging into the gas-solids suspension duct of the next-higher stage and the solids duct of one stage joining the gas-solids suspension duct of the next-lower stage. In addition, the junction of the solids duct and the gas-solids suspension duct of the third or a higher stage is provided below the highest point of the gas-solids suspension duct arranged two stages lower.07-07-2011

Daniel Klegraf, Ruethen-Westereiden DE

Patent application numberDescriptionPublished
20110209449DEVICE FOR SEPARATING A SOLID MATERIAL AND A GAS AND A PLANT FOR CEMENT MANUFACTURE - The device according to the invention for separating a solid material and a gas substantially comprises an ascending conduit for conducting a gas-solid material suspension having a solid material supply port for feeding in a solid material and a gas supply port for feeding in a gas, a descending helical and/or spiral conduit, in which the gas-solid material suspension is separated into a solid material flow and a gas flow by centrifugal forces, a diverter head that connects the ascending conduit with the helical and/or spiral conduit, wherein in the region of the diverter head at least one bend is provided in the conduit configuration, connected to the end of the helical and/or spiral conduit a solid material conduit for discharging the flow of solid material and also connected to the end of the helical and/or spiral conduit a gas conduit for discharging the flow of gas.09-01-2011

Ellen Klegraf, Brig CH

Patent application numberDescriptionPublished
20090275558SUBSTITUTED SULFONAMIDE COMPOUNDS - Substituted sulfonamide compounds corresponding to formula I11-05-2009

Ellen Klegraf, Eltville DE

Patent application numberDescriptionPublished
20080300199ANTIBACTERIAL 1,4,5-SUBSTITUTED AMINOGLYCOSIDE ANALOGS - The present invention is directed to analogs of aminoglycoside compounds as well as their preparation and use as prophylactic or therapeutics against microbial infection.12-04-2008

Ellen Klegraf, Brig-Glis CH

Patent application numberDescriptionPublished
20110171102PROCESS FOR THE PREPARATION OF ETHANEDINITRILE - The invention relates to a process for the preparation of ethanedinitrile, by reading hydrocyanic acid in the liquid phase with nitric acid in the presence of a cupric ion catalyst.07-14-2011
20110195012PROCESS FOR REMOVING HYDROGEN CYANIDE FROM ETHANEDINITRILE - Process for removing hydrogen cyanide from ethanedinitrile by contacting hydrogen cyanide-containing ethanedinitrile with an organic reagent under formation of a covalent bond.08-11-2011

Tobias Klegraf, Ruthen DE

Patent application numberDescriptionPublished
20090098498SYSTEM FOR PRODUCING CEMENT CLINKER - The system according to the invention for producing cement clinkers from raw cement mix is composed substantially of a pre-warmer for pre-warming the raw cement mix, a calcination device for pre-calcining the pre-warmed raw cement mix, a sintering kiln for firing the pre-calcined raw cement mix to form cement clinkers, and a cooler for cooling the fired cement clinker. Additionally provided between the cooler and the calcination device is a tertiary air line via which tertiary air is supplied to the calcination device. The calcination device is additionally traversed by the waste gases of the sintering kiln and has a calcining nozzle in its inlet region. Also provided are means for setting the cross section of the calcining nozzle, which means are formed by at least one element which is arranged in a rotatable or pivotable fashion in order to set the cross section and which is exposed to the waste gases of the sintering kiln.04-16-2009
20090305180PLANT AND METHOD FOR THE PRODUCTION OF CEMENT CLINKER - The invention relates to a plant and to a method for the production of cement clinker from cement raw meal, the cement raw meal being preheated in a preheating zone, precalcined in a calcining zone, completely burned in a sintering combustion zone and cooled in a cooling zone, solid fuels additionally being burned in an additional combustion region, a firing region being used in the additional combustion region, the solid fuel being introduced into the firing region where it forms a fuel bed over which a supplied oxygen-containing gas flows, the resulting combustion products being removed via a discharge opening and being used in the production of cement clinker. The fuel is supplied via a conveyor device arranged outside the firing region, in such a manner that it moves the fuel bed that is present in the direction towards the discharge opening.12-10-2009